The administration of a small daily dose of aspirin has not only been

Hi,

It lies in the first part and therefore common to not only...but also.

Please see that only (C) makes use of the correct form and is the correct answer. There is no ambiguity among the answer choices with regards to this.

was deciding between c and A and choose C took me 40 seconds

OFFICIAL EXPLANATION

Here’s How to Crack It

As always, run through your checklist. Is there a pronoun in the sentence? Yes, but if you check the answer choices, you’ll discover that the same pronoun appears in each one. Obviously, pronoun error is not what is tested this time. Is there a modifying phrase? No. So much for misplaced modifiers. Is there a list of things or a series of actions? No. To be sure that there really is no parallel construction problem, we should look at the two halves of the sentence as well. The first half, “… has been shown,” matches the second half, “… has also been shown,” and both are in the same tense, so there is no problem with either parallel construction or tense. There are no comparison words either, so we don’t have to worry about faulty comparison. Could there be something wrong with an idiomatic expression in the original sentence? Let’s try a sentence of our own.

Not only is he nasty…

How would you finish this sentence? If you said something like “… but he is also disgusting,” you would be absolutely correct. In GMAT English, “not only …” is always followed somewhere in the same sentence by “but also.…” Let’s look at the answer choices to see which can be eliminated. A, B, and E all use some other conjunction instead of “but,” which means that the only possible answers are C and D. Choice D uses “in addition” instead of “also.” This might not be fatal, but then keep reading after the underlining: “helpful in addition for relieve the suffering of arthritis.” If the word “for” seems to stick out, it is because we need to form the infinitive case of “relieve” by using “to.” Thus, the correct answer is C.