Allen: Our state has a ten-cent deposit on all carbonated beverage containers. This ensures that plastic and glass bottles and aluminum cans are recycled. Your state should have a bottle deposit program.
John: My state has a comprehensive recycling program that features curbside recycling and recycling bins at highway rest stops, parks, and other public places. Studies have shown that comprehensive recycling programs more effectively encourage recycling than do bottle deposit programs alone. Therefore, my state should not adopt a bottle deposit program.
John’s conclusion would be most weakened by which of the following?
(A) Ten-cent bottle deposit programs are more effective than five-cent deposit programs.
(B) Americans in every state are much more likely to recycle now than they were in the 1970s when most deposit laws were passed.
(C) Beverage bottles, on average, account for only 8 percent of the litter along highways and 4 percent of the solid waste in landfills.
(D) Many states, including Allen’s, have both a bottle deposit program and a comprehensive recycling program.
(E) Bottle deposit programs and comprehensive recycling programs are more effective at encouraging recycling than are ad campaigns.