THE CORRECT ANSWER IS (C). THE ARGUMENT RELIES ON THE UNSTATED ASS...

23. The correct answer is (C). The argument relies on the unstated assumption that the

funds used to maintain the roads would be available for the education program should

the ordinance be repealed. Choice (C) provides evidence that this assumption is a

reasonable one; if the roads are of no other practical use, then there would be no need to

continue to spend county funds to maintain them. Choice (D) does admittedly lend some

measure of support to the argument. Common sense tells us that the education program

would be effective only if the group of individuals whom it is designed to benefit actually

benefit from it. However, we are not informed whether the entire population is in fact

susceptible to Smith’s Disease. Without this additional information, it is impossible to

assess the degree to which choice (D) strengthens the argument.