Explanation
Creating a filter: When we read the sentence, we apply the
brakes at "wealth of data support." We always
check the subject and verb of a sentence, because every sentence must have
a subject and verb. The subject is "wealth" and the verb is "support." That's
wrong, because "wealth" is grammatically singular, even if its meaning conveys
or implies plurality. We know the grammatical subject of the sentence isn't
"data" because "data" is an object of the preposition "of." A noun that is the object of a preposition
cannot be the subject of a verb; when you are looking for the noun that is the
subject of a particular verb, you can ignore prepositional phrases. So, the
correct answer probably has "wealth of data supports." Let's check the
answer choices.
Applying the filter: We are down to (D) and (E).
Finding objective defectives: (D) is much better than (E).
When a sentence expresses an indirect
statement -- someone else's belief, assertion, or statement -- it is typically
introduced as a clause with the word "that." And that's what's happening
here. So the answer must be (D). We confirm that (B) and (C) are bogus. The
verb tenses are off, since this belief is a general one, expressed in the
present tense, and additionally they use the phrase "there being" and "already
being," which are awkward. The correct answer is (D).
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