Bunuel
Vendacraft's announcement of a partnership with Cupric Thunder raised expectations
that they will be able to release the next generation of kitchen appliances before their competitors can do so.
A. that they will be able to release the next generation of kitchen appliances before their competitors can do so
B. that it will be able in releasing the next generation of kitchen appliances before its competitors can do this
C. that Vendacraft will be able to release the next generation of kitchen appliances before its competitors can do so
D. that Vendacraft will have the ability to release the next generation of kitchen appliances before Vendacraft's competitors can do this same thing
E. of their ability to releasing the next generation of kitchen appliances before their competitors can do this
Magoosh Official Explanation:
Split #1: "expectation that" vs. "expectation of". When we have expectations of a person (or a group), we use "of" --- "I have high expectations of him", "What do you expect of them?" ---- the object of the preposition "of" is the subject of some expectation. When we are anticipating a certain action, then we use the idiom "expectation that"/"expect that". Here, we are not talking about having expectations "of their ability" --- that is to say, expectation about the quality or extent of their ability. Rather, we are anticipating that they will be able to do something: we are expecting an action, so we need a "that" clause. Only choices (E) makes this mistake.
Split #2: the idiom with able/ability. The words "able" & "ability" require an infinitive --- "able to do something". Putting any other preposition after the word "able" or "ability" is incorrect --- choice (B) us the preposition "in" after "able", so this is incorrect.
Split #3a: Agreement. Vendacraft is a singular company. It may have a bazillion employees, but those employees are not mentioned. Only the company is mentioned, it is singular, so we need the singular pronoun. Choices (A) & (E) use the plural pronoun, so these are incorrect.
Split #3b: Agreement. Technically, Vendacraft appears at the beginning of the sentence only in the possessive, and as such, it cannot serve as the antecedent to a pronoun. Since we want to continue talking about Vendacraft in the second half of the sentence, we cannot simply refer to it with a pronoun, a mistake that (A) & (B) make. We need to mention it again by name. Only (C) & (D) do this correctly. Also, (E) is correct, because it uses a possessive pronoun to refer to the antecedent in the possessive: this is the only time it is legitimate to have an antecedent in the possessive. See the blog on Pronoun Traps.
Split #4: the end of the sentence. We explain what Vendacraft will be able to do, before its competitors can ---- what? Choices (A) & (C) have "do so." Choices (B) & (E) have "do this." Choice (D) has "do the same thing." What is the rule? If the first verb were the verb "do", and we merely had to substitute for the same noun being done, then we could use "this" or a similar pronoun --- "P did the thing on page 37 of the manual before Q did this", "P does a handstand before Q does one", "P does his laundry before Q does hers" etc. BUT, if the verb is any verb in the English language other than the verb "do", then we are substituting not merely for a noun but for an entire predicate, that is [verb] + [object]. If we are substituting for an entire predicate, the most concise way to say this is "do so" ----- "P will wash his car before Q does so", "P will take a shower before Q does so", etc. Choices (A) & (C) are correct in this respect. Choices (B) & (E) are 100% wrong. Choice (D) technically is grammatically correct as well, but wordy and awkward --- this would never be acceptable on the GMAT.
Choice (C) is the only possible answer.