Here's the
official explanation provided by the GMAC for this question:
This sentence about playwright Rachel Crothers is clear and grammatically correct. We are told she was very successful although few people currently living have heard of her. The conjunction
although normally functions to concede a point, or (as in the given sentence) to qualify a salient point, in this case Crothers’s success as a playwright.
Option A: Correct. The clause introduced by
although functions correctly in context. The adverb
now is correctly positioned to modify
is rare as intended.
Option B: This is wordy and unnecessarily awkward, and the wording
however rare it might be provides no compensating improvement over the use of
although in the given sentence. The adverb
now is likely intended to modify the verb
might be and would be better juxtaposed to it; its placement at the end of the clause confusingly suggests that it might modify
has heard, or perhaps
find.
Option C: The use of the passive-voice verb form
has been heard of is wordy and unnecessarily awkward and offers no improvement on the active-voice verb formulation in the given sentence. The phraseology
it may … be rare that is more awkward and wordy than the phraseology in the given sentence.
Option D: The indirectness of this usage—
despite followed by a long noun phrase with the passive-voice verb form
being heard of—is awkward and less preferable to the more condensed language used in the given sentence. In the given sentence, the adverb
now modifies the verb
is, not the verb
has heard, whereas with this answer choice it modifies the verb
being heard.Option E: The use of the passive-voice verb form
has been heard of is wordy and unnecessarily awkward and offers no improvement on the active-voice formulation in the given the sentence. In the given sentence, the adverb
now modifies the verb
is, not the verb
has heard, whereas here it modifies
has … been heard of. She has now been heard of only rarely appears to indicate that she had almost never been heard of even during the past time when she was a successful playwright.
The correct answer is A.
Please note that I'm not the author of this explanation. I'm just posting it here since I believe it can help the community.