请教一道GWD的题~~~~~

小小酥0208

后天二战了，5555，向各位大虾请教一道不懂得题~~~~ 谢谢指点~~~~~

为什么答案是B呢？ 我选的D
Brochure:Help conserve our city’s water supply.By converting the landscaping in your yard to a water-conserving landscape, you can greatly reduce your outdoor water use.A water-conserving landscape is natural and attractive, and it also saves you money.


Criticism:For most people with yards, the savings from converting to a water-conserving landscape cannot justify the expense of new landscaping, since typically the conversion would save less than twenty dollars on a homeowner’s yearly water bills.


Which of the following, if true, provides the best basis for a rebuttal of the criticism?

1. Even homeowners whose yards do not have water-conserving landscapes can conserve water by installing water-saving devices in their homes.
   
2. A conventional landscape generally requires a much greater expenditure on fertilizer and herbicide than does a water-conserving landscape.
   
3. A significant proportion of the residents of the city live in buildings that do not have yards.
   
4. It costs no more to put in water-conserving landscaping than it does to put in conventional landscaping.
   
5. Some homeowners use more water to maintain their yards than they use for all other purposes combined.
   

xiaoqingxixi

我的理解如下，刚刚开始复习，看到你的题顺便做下，仅供参考.

Criticism:For most people with yards, thesavings from converting to a water-conserving landscape cannot justify theexpense of new landscaping, since typically the conversion would save less thantwenty dollars on a homeowner’s yearly water bills.
(disagree to convert to water-conserving landscap, concern focus on economically )

Which ofthe following, if true, provides the best basis for a rebuttal of thecriticism?
(要反对Criticism，也就是说要找那个方面water-conserving 比conventional省钱)

1. Even homeowners whose yards do not have     water-conserving landscapes can conserve water by installing water-saving     devices in their homes.
   
2. A conventional landscape generally requires a much     greater expenditure on fertilizer and herbicide than does a     water-conserving landscape.（conventional landscape在fertilizer&herbicide方面比较贵，water-conserving 便宜）
   
3. A significant proportion of the residents of the     city live in buildings that do not have yards.
   
4. It costs no more to put in water-conserving     landscaping than it does to put in conventional landscaping.（water-conserving和conventional需要的钱一样，不能说明water-conserving就好）
   
5. Some homeowners use more water to maintain their     yards than they use for all other purposes combined.
   

caixinyuan1989

重点在Criticism 所说的WATER BILL

小小酥0208

谢谢楼上二位！