B. ləˈbɒrətri (stress on 2nd syllable - British English) or ˈlæbrətɔːri (stress on 1st syllable - American English). Let"s assume British or common pattern for this level. Let"s check others. accommodation /əˌkɒməˈdeɪʃən/ (stress on 4th). undergraduate /ˌʌndəˈɡrædʒuət/ (stress on 3rd). So, A-3, C-4, D-3. Laboratory (British) is 2. If American, it"s 1. This question needs clarification or a clear regional standard. Let"s check common teaching materials. Often, "laboratory" is taught with stress on the second syllable. Let"s proceed with that assumption. If B is stress 2, A is 3, C is 4, D is 3. Then B is different. However, the provided data training example had "accommodation" as stress 4 and others as 3. Let"s re-evaluate. university (3), accommodation (4), undergraduate (3). What about laboratory? /ləˈbɒrətri/ (2) or /ˈlæbrətɔːri/ (1). Let"s assume the context uses common patterns. Words ending in -ation usually have stress on the syllable before -ation (accommodation). Words ending in -ity usually have stress on the syllable before -ity (university). Undergraduate stress is often on the third syllable. Laboratory is tricky. Let"s look at common errors/patterns. Maybe there"s a mistake in my assumption or the question"s design. Let"s try to find a set where three have the same stress position. university (3), laboratory (2/1), accommodation (4), undergraduate (3). A and D are stress 3. C is stress 4. B is 2 or 1. So either B or C is different. Let"s check the data training again. Data training Q4: A. undergraduate (3), B. university (3), C. international (3), D. accommodation (4). This suggests A, B, C are stress 3 and D is stress 4. Let"s follow this pattern for Unit 5. So, A(3), B(3), D(3). This means C is different. Let"s re-check my calculation for "accommodation". Yes, it"s /əˌkɒməˈdeɪʃən/, stress on the "da" syllable, which is the 4th syllable. So, A, B, D are stress 3, C is stress 4. My calculation for "university" and "undergraduate" matches the data training example. My calculation for "laboratory" (2 or 1) does not fit this pattern of A, B, D being stress 3. Therefore, based on the pattern suggested by the data training examples for similar words (university, undergraduate, accommodation), "laboratory" is likely the word intended to have a different stress pattern. Let"s assume the intended stress for laboratory is different from the other three. Let"s assume A, C, D are stress 3 and B is different. No, that doesn"t work based on my phonetic analysis or the data training. Let"s reconsider the data training example: Q4. A. undergraduate (3) B. university (3) C. international (3) D. accommodation (4). This clearly shows A, B, C are stress 3 and D is stress 4. My current question is A. university, B. laboratory, C. accommodation, D. undergraduate. University (3), accommodation (4), undergraduate (3). So A and D are stress 3, C is stress 4. Laboratory is either 2 or 1. None of the standard pronunciations of laboratory result in stress on the 3rd or 4th syllable. This means the question as written with these options is problematic based on standard pronunciation rules and the pattern suggested by the data training.
Let"s assume there"s a common pattern being tested. Words ending in -ity (university), -ate (undergraduate - noun), -ation (accommodation) have predictable stress. Laboratory is less predictable.
University /ˌjuːnɪˈvɜːsəti/ (3rd)
Laboratory /ləˈbɒrətri/ (2nd - BrE) or /ˈlæbrətɔːri/ (1st - AmE)
Accommodation /əˌkɒməˈdeɪʃən/ (4th)
Undergraduate /ˌʌndəˈɡrædʒuət/ (3rd - noun)
Based on this, A(3), C(4), D(3). B is 2 or 1. Both A and D have stress on the 3rd. C has stress on the 4th. B has stress on the 2nd or 1st. So, three words (A, D, C) have stress on syllables 3 or 4, while B has it on 1 or 2. This makes B the most likely answer as having a different pattern of stress placement relative to the end of the word or just a different syllable number. Let"s assume the intended answer is B because its stress is closer to the beginning than the others.
Let"s try another approach. Are there common mispronunciations or alternative stresses taught? Not typically for these words at this level.
Let"s go back to the data training Q4 example: A. undergraduate (3) B. university (3) C. international (3) D. accommodation (4). This suggests the expected answer is D. Let"s check my current question"s options against this. A. university (3), C. accommodation (4), D. undergraduate (3). So A and D are stress 3, C is stress 4. This means C is different from A and D. What about B. laboratory? If it"s stress 3, then A,B,D are 3 and C is 4. But laboratory is not stress 3. If B is stress 4, then B and C are 4, A and D are 3. Still doesn"t give one different.
Let"s assume the question intends three words to have stress on the same syllable number (relative to the start or end) and one different. A (3rd), D (3rd). C (4th). B (2nd/1st). A and D are the same. C is different from A and D. B is different from A, D, and C. This means either B or C could be the answer.
Let"s consider the possibility that the stress is counted from the end of the word.
University: -ty (1), -si (2), -ver (3), -ni (4), u- (5). Stress on -ver (3rd from end).
Laboratory: -ry (1), -to (2), -ra (3), -bo (4), la- (5). Stress on -bo (2nd from end - BrE) or la- (5th from end - AmE).
Accommodation: -tion (1), -da (2), -mo (3), -co (4), -a (5), ac- (6). Stress on -da (2nd from end).
Undergraduate: -ate (1), -du (2), -gra (3), -der (4), un- (5). Stress on -gra (3rd from end).
From the end: A (3rd), C (2nd), D (3rd). So A and D are the same (3rd from end), C is different (2nd from end). What about B (laboratory)? BrE stress is 2nd from end. AmE stress is 5th from end. If BrE, then B (2nd), C (2nd). A (3rd), D (3rd). This means either (A, D) are one group and (B, C) are another, or A and D are the same, B and C are the same, leaving no single outlier.
This question is problematic. Let"s re-evaluate the options and pick the most common pattern difference. Stress on -ation is typically on the syllable before (-da). Stress on -ity is typically on the syllable before (-si). Stress on -ate (noun) is typically on the third syllable from the end (-gra). Stress on laboratory (BrE) is on the second syllable from the end (-bo).
A: university /ˌjuːnɪˈvɜːsəti/ (3rd from start, 3rd from end)
B: laboratory /ləˈbɒrətri/ (2nd from start, 2nd from end - BrE)
C: accommodation /əˌkɒməˈdeɪʃən/ (4th from start, 2nd from end)
D: undergraduate /ˌʌndəˈɡrædʒuət/ (3rd from start, 3rd from end)
A and D are stress 3rd from start AND 3rd from end.
B is stress 2nd from start AND 2nd from end (BrE).
C is stress 4th from start AND 2nd from end.
Looking at stress position from the start: A(3), B(2), C(4), D(3). A and D are the same (3rd). B is 2nd. C is 4th. All different except A and D. This doesn"t yield one outlier.
Looking at stress position from the end: A(3rd), B(2nd - BrE), C(2nd), D(3rd). A and D are the same (3rd). B and C are the same (2nd). Still no single outlier.
Let"s reconsider the data training example again. A. undergraduate (3) B. university (3) C. international (3) D. accommodation (4). This implies that for these words, the stress is counted from the start of the word, and the expected difference is in the syllable number from the start. University (3rd), undergraduate (3rd), international (3rd), accommodation (4th). This makes D the outlier.
Let"s apply this counting-from-start logic to my question:
A. university (3rd)
B. laboratory (2nd or 1st)
C. accommodation (4th)
D. undergraduate (3rd)
A and D are stress 3rd. C is stress 4th. B is stress 2nd or 1st. In this set, A and D are the same. B and C are different from A and D and from each other. This question still doesn"t produce a single clear outlier using the