Which sentence from the last paragraph of "Bat Benefits" BEST supports the claim that pesticides are dangerous?

A
The use of bats to control mosquito populations is more environmentally safe than the use of pesticides.

B
The effectiveness, of course, is arguably less than the chemical alternative.

C
With increasing evidence of the harmful effects of pesticide use, the desire to explore more natural alternatives to control pests is on the rise.
D
A network of bat houses in areas infested by mosquitoes might prove to be an effective way to combat an environmental problem with a natural solution.

C

With increasing evidence of the harmful effects of pesticide use, the desire to explore more natural alternatives to control pests is on the rise.