Critical Reasoning

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?
A. Even homeowners whose yards do not have water-conserving landscapes can conserve water by installing water-saving devices in their homes.
B. A conventional landscape generally requires a much greater expenditure on fertilizer and herbicide than does a water-conserving landscape.
C. Asignificantproportionoftheresidentsofthecityliveinbuildingsthatdonothaveyards.
D. It costs no more to put in water-conserving landscaping than it does to put in conventional
landscaping.
E. Some homeowners use more water to maintain their yards than they use for all other
purposes combined.


Sorry but im not too sure of the OA. the OA i have is C but i think the answer is B since it justifies the expense of the new landscaping. This question is there on another thread of BTG which shows the OA is B but im still unsure if C can be right in any way