explanation:
(C) The original sentence intends to show the effects of a new personal computing company on competing companies. However, it contains a pronoun error. The pronoun "them" could refer either to the new company or to its competing companies.
You can eliminate choices (A), (B), and (E) because they use this vague pronoun. Choice (D) violates the rules of parallelism with the verb forms has taken and have been induced.
Choice (C) correctly replaces the pronoun "them" with
Therefore, choice (C) is the best answer.
C) This is a Meaning question. Correct verb form and use of the word "since" to indicate a causal relationship are being tested in this sentence. Because the sentence refers to events occurring in present time, the use of the present tense is required. Additionally, the parts of the sentence are logically connected in a causal relationship: because most students do not complain, universities do not have many chances to establish brand loyalty. This logical relationship requires the use of a word like "since," "because," or "consequently".
"Had not complained" in choice (A) is a past-perfect tense and is not correct in the sentence. Past perfect refers to a time previous to a past time mentioned nearby and all nearby verbs are in the present.
"Have not complained" in choice (B) incorrectly uses perfect tense. The parallel clause beginning with the word "even" is in the indicative; the earlier clause should be, as well.
Choice (C) is the correct choice. This option correctly uses "do not complain" in present tense and the word "since" to indicate a logical causal relationship between parts of the sentence.
In choice (D), the past indicative verb "did not complain" is incorrect in part because parallel verb "are" is in the present.
Choice (E) provides another incorrect use of the perfect tense.
Therefore, choice (C) corrects the errors in the original sentence and, therefore, is the correct answer.