OG12 48

detectiveyangs

OG11-50
If the county continues to collect residential trash at
current levels, landfills will soon be overflowing and
parkland will need to be used in order to create more
space. Charging each household a fee for each pound
of trash it puts out for collection will induce residents
to reduce the amount of trash they create; this charge
will therefore protect the remaining county parkland.

Which of the following is an assumption made in
drawing the conclusion above?
(A) Residents will reduce the amount of trash they
put out for collection by reducing the number
of products they buy.
(B) The collection fee will not significantly affect
the purchasing power of most residents, even if
their households do not reduce the amount of
trash they put out.
(C) The collection fee will not induce residents to
dump their trash in the parklands illegally.
(D) The beauty of county parkland is an important
issue for most of the county’s residents.
(E) Landfills outside the county’s borders could be
used as dumping sites for the county’s trash.

我看到有人说选C不选A的原因是因为：检验假设最好的方法就是取非，对A取非并不能削弱结论。
但是，我觉得，结论是因为有fee,大家减少了垃圾，所以parkland就保存下来了。对A取非是大家不会减少垃圾的数量。这不正好就削弱了结论吗？
那A哪里错了呢

miachw901304

个人认为reducing the number of products they buy是无关内容

victoria820

E说明了这个logo有品牌效应，即刺激消费相应品牌的credit card. 原题是讨论银行卡和cash pay的   所以是无关选项

wangliming

我理解下来，

A选项只是对原文里的 Charging each household a fee for each pound of trash it puts out for collection will induce residents to reduce the amount of trasg they create;这句话的补充而已，就是A只是这句话的原因而以，而并不是额外的assumption。貌似是多余的。