JonShukhrat
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.
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:
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.
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).