Dear Friends,
Here is a detailed explanation to this question-
fozzzy wrote:
The company’s efforts to seek advance orders for its computers will set off an intense new phase with its chief rival, one determined more by how efficiently each company can produce computers than by their visions.
(A) one determined more by how efficiently each company can produce computers than by their visions
(B) which will determine more how efficiently each company can produce computers than their visions
(C) which will determine more how efficiently each company can produce computers than by its visions
(D) one that will be determined more by how efficiently each company can produce computers than its visions
(E) one determined more by how efficiently each company can produce computers as by its vision
Choice A: This answer choice conveys the intended meaning of the sentence and maintains proper idiom use throughout the sentence. Thus, this answer choice is correct.
Choice B: This answer choice incorrectly modifies the noun "chief rival" with the phrase "which will determine..." due to the use of the word "which". The modifying clause "which will determine..." also causes an error of meaning, as its construction implies that the modified subject shall affect the companies' computer production. Thus, this answer choice is incorrect.
Choice C: This answer choice repeats the errors found in Option C. Thus, this answer choice is incorrect.
Choice D: This answer choice fails to maintain the proper idiomatic construction "more by...than by". Thus, this answer choice is incorrect.
Choice E: This answer choice repeats the error found in Option D. Thus, this answer choice is incorrect.
Hence, A is the best answer choice.One important thing to note here is that the use of the possessive pronoun "their" is perfectly correct in this sentence. This pronoun refers to the respective "visions" of "the company" and its "chief rival"; thus a plural possessive pronoun must be used.
To understand the concept of "Use of Which, Who, Whose, Where on GMAT" you may want to watch the following video (~1 minute):
All the best!
Experts' Global Team