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1:43 seconds for C.
I'm non native english but I took C instead of E.

C. Noting that the three students were arguing over the proper use of semicolons while they were writing a joint science report, the teacher interrupted their discussion.

E. Noting that the three students were arguing over the proper use of semicolons while writing a joint science report, the teacher interrupted their discussion.

Answer C respects the fact that the two actions are taking place simultaneously.
We can recognize it because there is WHILE.
With While we should have the same verbs for both actions: were... were...
In E we have: were... for the first action and writing for the second action.


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egmat Can you help with this one please!
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I picked E over C, because on GMAT SC, it is always recommended to opt the answer choice that does not use ambiguous pronouns.
Experts, please help.
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Hi experts,
I picked E over C, as E conveys the meaning in a more concise way that does C. Moreover, C has the ambiguous pronoun "they" which should be avoided. Kaplan's explanation claims that C has no ambiguity. However, I am not convinced by their explanation.

In all the GMAT SC questions I have attempted before, the correct answer choice do not allow for any pronoun ambiguity.

Would love your insights on the same. Thank you.
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akankshasehgal16
Hi experts,
I picked E over C, as E conveys the meaning in a more concise way that does C. Moreover, C has the ambiguous pronoun "they" which should be avoided. Kaplan's explanation claims that C has no ambiguity. However, I am not convinced by their explanation.

In all the GMAT SC questions I have attempted before, the correct answer choice do not allow for any pronoun ambiguity.

Would love your insights on the same. Thank you.

No expert here and I even picked the wrong answer D. But E can straight away be eliminated because of its meaning issue because it creates the following question - What were the students arguing about? The proper use of semi-colons OR the proper use of semi-colons in joint science reports? D and C eliminate this ambiguity by using 'while they were writing' so its the former. But D turned out to be 'wordy' so we're left with C.
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