[DELETED because this is an OG question - please do not post OG questions anywhere on the forums. Check out the stickies containing banned items if you're not sure what is allowed.]

I narrowed down the answers to the two choices using the 'as many as' idiom, but could not find a convincing explanation to justify picking one choice over the other. The guide states that D incorrectly compares enrollment to people, but enrollment means the number of PEOPLE enrolled. Any suggestions?

please post questions in their entirety, including answer choices, for the sake of the other students reading this board and of the instructors answering questions on it (we don't always have our materials at hand)

thank you.

[DELETED because this is an OG question - please do not post OG questions anywhere on the forums. Check out the stickies containing banned items if you're not sure what is allowed.]

I narrowed down the answers to the two choices with the 'as many as' idiom, but could not find a convincing explanation to justify picking one choice over the other. The guide states that D incorrectly compares enrollment to people, but enrollment means the number of PEOPLE enrolled. Any suggestions?

well, ok, the word enrollment does indicate a number of people. however, it's not directly comparable, so nix it. remember that comparisons - like other parallelism issues - are extremely exacting: same grammatical form, same tense, number, mood (if those things are applicable), not to mention 'logical parallelism' (the parallel items need to serve the same function in their respective clauses).

more to the point:
you can't say 'as many as x' unless x is actually something to which the word 'many' can apply. specifically, you can only use 'many' to describe countable nouns (like 'people' in the first half of the comparison). 'enrollment', on the other hand, is a mass noun (not countable), to which 'many' cannot be applied.

an enrollment could be high, or large, but not 'many'.

IS QA B?

sorry, enginpasa1, this is an OG questions and can't be discussed here. If you want to look it up, it's in the OG Verbal Review supplement (the purple book) and it's SC #92.