Explanation
Reading the question: If the Subscription Plan question
was fresh in your mind, you might have noticed in your approach to this
question that it presents something similar: a plan, or what we could call an
argument about the future. And the prompt, though not rich with argument, does
contain the opinion of the investors. However, our filter below will end up
closer to that for an "explain" question. Don't let that bother you: questions
frequently can be categorized in one or more ways. After all, there aren't
official categorizations to these questions.
Creating a filter: the critical detail here is that we are
expecting the airport traffic to grow even though the city population will not
increase. For example, tourism to the city might be expected to grow. That way,
the population doesn't grow, but flights grow. That's the key detail: we need a
situation in which 1) we do not require the population of the city does not
grow and 2) the traffic through the airport will increase. As in an explain question,
the correct answer should address both.
Applying the filter: choice (A) matches our filter; since,
1) the number of people is not increasing, but 2) the travel per person is
increasing. Choice (B) misses the target; even if the airport stimulated
interest in early morning flights, would people necessarily fly more overall,
or just shift their flight preferences? Choice (C) doesn't connect to 1) or 2).
Choice (D) is tempting. If flights in the future have more seats, they might be
more profitable. But this explanation fails to connect both 1) and 2): if the
population isn't growing, why should double the number of flights be
profitable? Choice (E) is also out, as it also fails to explain how we can
profitably double flights. We're left with (A).
Logical proof: we can apply the negation test to choice
(A). If the percentage of the population of prime traveling age went down in the future, we would have a good
reason to doubt the plan. Choice (A), indeed, is material to the argument. The
correct answer is (A).
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