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04 Jul 2019, 06:10
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JonShukhrat
First let's get something straight. "Changes the meaning" is a myth. There is no correct meaning in a Sentence Correction question. The correct answer is the one that effectively conveys a logical meaning, whatever that meaning may be.
Regarding (A) and (D), your analysis is spot on, and there is nothing clearly wrong with (A), other than the fact that what it expresses conflicts with what is commonly understood to be the way in which viruses and immune systems interact.
So, in terms of what matters in Sentence Correction, effectively expressing a logical (if incorrect in (A)) meaning in a grammatically correct way, there is no reason for choosing (D) over (A).
04 Jul 2019, 06:56
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MartyTargetTestPrep
Dear MartyTargetTestPrep,
Once again thank you very much for such a quick response and your precious time.
I have seen how some experts say “If the original meaning is not nonsensical or contradictory, then changing it is unwarranted.” That’s the reason why I tried to preserve the initial meaning. Since I am really keen on human anatomy I have decent knowledge in it (at least I thought so). Actually, the meaning of A still seems more logical to me. I’ve just googled some papers. Could you please tell how a test taker (even the one who has some understanding in anatomy) can choose D over A? I don’t think that GMAC expects me to be an expert in human anatomy. The difference between A and D seems too subtle to me.
Actually, there is very good evidence in this thread for why this difference can be too subtle. For this question there are 82 posts, some of them from really experienced GMAT aspirants, and NONE of these posts says that D conveys correct information and A coveys incorrect one. By this I mean, asking an aspirant to choose between A and D basing on their knowledge in human anatomy must be beyond GMAC’s practice. Indeed, almost all who crossed of A did so because of with.
04 Jul 2019, 07:31
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JonShukhrat
Changing the meaning may be unwarranted, but a different meaning is not an incorrect meaning.
In other words, there is no relevance or superiority to the "original meaning."
There are only meanings that make sense and meanings that don't make sense.
Quote:
While, of course, using some common sense in evaluating meanings of Sentence Correction versions is expected, one is not expected to evaluate versions by determining whether what they convey accurately reflects current understanding of specific biological processes. So, there is no Sentence Correction related way to choose (D) over (A).
In fact, since (D) uses the unidiomatic and somewhat illogical "cause increase ... and decrease," one could argue that (A) is better than (D).
