Could anyone give a very strong reasoning for the options B and E as to why B is correct and E is wrong or either ways, B is wrong and E is correct.
Experts your help needed.
Thanks and regards,
This is in response to your PM.
The only difference between Choice B and Choice E is of "in measuring" and "to measure". Per the context of the sentence, "in measuring" is better that "to measure".
As the poster before my post has correctly said, this is not very good question to study because GMAT now does not use the idiom "not only X but Y". The correct idiom is "not only X but also Y".
So just study official questions.
Hope this helps.
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