Bunuel
Gas leaks are a danger for households in which certain standards of safety are not maintained. So that householders are able to detect such hazards before they become serious enough to pose a danger, the county fire safety board has mailed a newsletter to all residents of the county, listing ways to detect a gas leak and encouraging householders to check for such signs.
Which of the following, if true, is the best criticism of the newsletter as a means of achieving the fire safety board’s goals?
A. Many gas leaks have certain warning signs that cannot be detected during an investigation by a householder.
B. Once a gas leak is known to exist, the steps taken to eliminate such a hazard vary according to the type and location of the leak.
C. The newsletter was sent to all residents of the county, including those who maintain the standards of safety that preclude the possibility of a gas leak.
D. Gas leaks are more common in single-family homes than they are in apartments.
E. People who do not maintain minimal standards of safety are unlikely to inspect their homes for the signs of gas leaks.
PRINCETON REVIEW OFFICIAL EXPLANATION:
E
This is a weaken question, so we need to attack the author’s assumption that the newsletter will cause early detection of gas leak hazards. Since his assumption is a causal one, the best attack will either show that the newsletter will not cause early detection of gas leaks, or that something else will cause early detection of gas leaks, so the newsletter is not necessary.
(A) No. The nondetectable signs of gas leaks are out of scope. We are concerned only with the detectable warning signs of a gas leak.
(B) No. This answer choice focuses on what happens after detection, so it’s out of scope. We’re interested only in detection.
(C) No. This does not attack the causal assumption, so eliminate it.
(D) No. It doesn’t matter what kind of dwelling is involved. It’s out of scope.
(E) Yes. Here we learn that the newsletter probably won’t cause early detection, because the people who are at risk won’t check for leaks.