Çözüldü SAT - ACT Writing and Language Test

A subway system is expanded to provide service to a growing suburb. A bike-sharing program is adopted to encourage nonmotorized transportation. __________.

A) To alleviate rush hour traffic jams in a congested downtown area, stoplight timing is coordinated.
B) Coordinating stoplight timing can help alleviate rush hour traffic jams in a congested downtown area.
C) Stoplight timing is coordinated to alleviate rush hour traffic jams in a congested downtown area.
D) In a congested downtown area, stoplight timing is coordinated to alleviate rush hour traffic jams.
E) For alleviating rush hour traffic jams in a congested downtown area, stoplight timing is coordinated.

Correct Choice: C (Stoplight timing is coordinated to alleviate rush hour traffic jams in a congested downtown area.)

Official Explanation:
Choice C is the best answer because it most closely maintains the sentence pattern established by the two preceding sentences, which begin with noun and passive verb phrases (“A subway system is expanded,” “A bike-sharing program is adopted”).

Choice A is not the best answer because it does not maintain the sentence pattern established by the two preceding sentences. Rather, it begins the sentence with an infinitive phrase.

Choice B is not the best answer because it does not maintain the sentence pattern established by the two preceding sentences. Rather, it begins the sentence with a gerund phrase.

Choice D is not the best answer because it does not maintain the sentence pattern established by the two preceding sentences. Rather, it places a prepositional phrase, “in a congested downtown area,” at the beginning of the sentence.

https://satsuite.collegeboard.org/media/pdf/official-sat-study-guide-sample-writing-language-test-questions.pdf
[Page 132 (2 in the pdf file), Question 1]
Explanation on Page 134 (4 in the pdf file)
(Unfortunately, the file was removed by the CollegeBoard later.)

Note: Choice E with the gerund entry is not the best answer either because it lacks the original passive sentence structure of the previous sentences.