Questions 20-21
Of every 100 burglar alarms police answer, 99 are false alarms. This situation causes an enormous and dangerous drain on increasingly scarce public resources. Each false alarm wastes an average of 45 minutes of police time. As a result police are consistently taken away from responding to other legitimate calls for service, and a disproportionate share of police service goes to alarm system users, who are mostly businesses and affluent homeowners. However, burglar alarm systems, unlike car alarm systems, are effective in deterring burglaries, so the only acceptable solution is to fine burglar alarm system owners the cost of 45 minutes of police time for each false alarm their systems generate.
20. The statement that burglar alarm systems, unlike car alarm systems, are effective in deterring burglaries plays which one of the following roles in the argument?
(A) It justifies placing more restrictions on owners of burglar alarms than on owners of car alarms.
(B) It provides background information needed to make plausible the claim that the number of burglar alarms police are called on to answer is great enough to be a drain on public resources.
(C) It provides a basis for excluding as unacceptable one obvious alternative to the proposal of fining owners of burglar alarm systems for false alarms.
(D) It gives a reason why police might be more inclined to respond to burglar alarms than to car alarms.
(E) It explains why a disproportionate number of the burglar alarms responded to by police come from alarm systems owned by businesses.
答案：C
哪位高手能把C翻译一下？unacceptable one obvious alternative指什么呢？
one abvious alernative =totally delete the service.
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