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Bunuel
Over the last 10 years, the population of deer in America increased dramatically over the past decade, while the number of drivers who report car accidents with deer on highways is more than four times what it was.


(A) increased dramatically over the past decade, while the number of drivers who report car accidents with deer on highways is more than four times what it was

(B) increased dramatically, while the number of drivers reporting car accidents with deer on highways is more than quadruple what it was at that time

(C) has increased dramatically, while the number of drivers reporting car accidents with deer on highways has more than quadrupled

(D) has increased dramatically over the past decade, while the number of drivers reporting car accidents with deer on highways is more than four times what it was at that time

(E) has increased dramatically over the past decade, while the number of drivers who are reporting car accidents with deer on highways are more than quadruple what they once were


A, D and E are out as "over the past decade" is redundant.

B is wrong because of two reasons:
1) Verb tense error
2) Unnecessary Wordy
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Bunuel
Over the last 10 years, the population of deer in America increased dramatically over the past decade, while the number of drivers who report car accidents with deer on highways is more than four times what it was.


(A) increased dramatically over the past decade, while the number of drivers who report car accidents with deer on highways is more than four times what it was

(B) increased dramatically, while the number of drivers reporting car accidents with deer on highways is more than quadruple what it was at that time

(C) has increased dramatically, while the number of drivers reporting car accidents with deer on highways has more than quadrupled

(D) has increased dramatically over the past decade, while the number of drivers reporting car accidents with deer on highways is more than four times what it was at that time

(E) has increased dramatically over the past decade, while the number of drivers who are reporting car accidents with deer on highways are more than quadruple what they once were

MANHATTAN REVIEW OFFICIAL EXPLANATION:



The phrase ‘over the past decade’ is repetitive, as the beginning of the sentence refers to the last ten years. Eliminate A, D and E. The population has increased over a period of time in the past. That period started in the past and continues up to the present. Therefore the present perfect tense should be used. Eliminate B. Choice C is the correct answer.
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