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. A significant proportion of the residents of the city live in buildings that do not have yards.
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.

Just posting this for anyone who's been using "The Most Comprehensive Collection of Everything Official - CR" study guide. The answer given as correct is "C" in the guide, but searching the internet for an explanation as to why it's "C", I found out that "B" is actually the correct answer, which eased my frustration.

Brochure: Water-Conserving Landscape saves you money.
Criticism: Conversion cannot justify the expenses of converting to new landscape. Savings on Water bills as support.

A. Even homeowners whose yards do not have water-conserving landscapes can conserve water by installing water-saving devices in their homes.
Strengthens the Criticism's argument. OUT!

B. A conventional landscape generally requires a much greater expenditure on fertilizer and herbicide than does a water-conserving landscape.
Conventional landscape has greater expenditure on other factors than water.. Weakens the Criticism's argument...

C. A significant proportion of the residents of the city live in buildings that do not have yards.
We are just concerned on those who will convert from conventional to new landscape... NEUTRAL... OUT!

D. It costs no more to put in water-conserving landscaping than it does to put in conventional landscaping.
Strengthens the Criticism's argument... OUT!

E. Some homeowners use more water to maintain their yards than they use for all other purposes combined.
Some could refer to just 1... This is showing that savings could be substantial for this portion of homeowners.. BUT B is better...

ANSWER: B