gwd-18-16 选项跟讨论贴里的不一样~~

Q16:

Aroca
                        City currently funds its public schools through taxes on property.  In place of this system, the city plans to introduce a sales tax of three percent on all retail sales in the city.  Critics protest that three percent of current retail sales falls short of the amount raised for schools by property taxes.  The critics are correct on this point.  Nevertheless, implementing the plan will probably not reduce the money going to Aroca’s schools.  Several large retailers have selected Aroca
                            City as the site for huge new stores, and these are certain to draw large numbers of shoppers from neighboring municipalities, where sales are taxed at rates of six percent and more.  In consequence, retail sales in Aroca
                        City are bound to increase substantially.

In the argument given, the two potions in boldface play which of the following roles?

1. The first presents a plan that the argument seeks to defend against a certain criticism; the second gives part of the basis for that criticism.
2. The first presents a plan that the argument seeks to defend against a certain criticism; the second gives part of the basis for that defense.
3. The first presents a plan that the argument criticizes; the second is a consideration raised by the argument in support of that criticism.
4. The first presents a plan that the argument criticizes; the second presents a consideration that has been raised against that criticism.
5. The first presents a plan whose consequences the argument seeks to evaluate; the second is presented by the argument as one likely consequence that is undesirable.

答案是b，我选的d，请nn分析一下~~

Argument是支持这个plan的，Criticism说这个Plan不一定达到效果，因为Sales会下滑，但是Argument说新的Shop会吸引其他邻镇的人来消费。

C说反了，说Argument是批语这个plan的

第一个黑体是文章试图证明的

critics以销售滑坡为由认为这个计划达不到效果

文章搬出第二个黑体，首先成人C的观点正确但是有其他因素使其抵消。

斑竹能具体的讲讲吗？

這題還是沒懂,誰來幫忙解釋一下