Bunuel
Regulations in Guravia dictate that commercial aircraft are subject to government inspection and maintenance at least once per week. A proposed law would allow airlines to opt out of the required inspection and maintenance. Opponents object that the airlines may attempt to cut costs and perform inadequate safety procedures. But since airlines are accountable to their customers, and air travelers consistently rate safety their first priority in choosing an airline, airlines would follow safety procedures at least as thorough as those currently undertaken by government inspectors and maintenance workers.
Which of the following would it be most useful to establish in order to evaluate the argument?
(A) Whether shifting the safety procedures to the airlines themselves would reduce the cost and time required for sufficient inspection and maintenance
(B) Whether safety regulations in other countries grant airlines more responsibility in keeping their aircraft at or above a certain standard of airworthiness
(C) Whether government inspectors and maintenance workers would be hired by the airlines to perform tasks similar to their current assignments
(D) Whether airlines that are not known for their safety records would suffer financially as a result of the proposed law
(E) Whether airline customers would have a way to determine which airlines followed safety procedures at or above the standard established by government inspectors and maintenance workers
OFFICIAL EXPLANATION
E
This is an evidence question, so we're looking for answer that addresses an unstated assumption in the passage. The argument is that, because airlines are accountable to their customers, they will follow safety procedures comparable to those followed by the government-mandated ones.
Choice (A) is irrelevant: we're concerned with whether the safety procedures would be as thorough, not how much they would cost.
(B) is another irrelevant comparison, as we're concerned only with the effect of the shift in Guravia.
(C) might sound tempting, but it doesn't matter who does the work, it matters what standards are set by the organization (the government, or the airlines) who are accountable for it.
Choice (D) is somewhat supported by the passage, but this isn't an inference question. We're looking for evidence to close a loophole in the argument.
Choice (E) is what we're looking for. The argument claims that customers will hold airlines accountable, but if there is no way to know which airlines are following safety procedures, the argument would fall apart.
Choice (E) is correct.