GWD-3-17

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?

请问这个题目的意思是说要去反对criticism（weaken题）还是说criticism的反对的基础（sopport题）？

看答案应该是前者，可是我晕了，如果考试的时候这样子都读不懂，不是完菜了：（