本贴相关题目 OG-2016V-CR-32OG-2016V-CR-32
OG-2015V-CR-34
... (YMCB)

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If the airspace around centrally located airports were restricted to commercial airliners and only those private planes equipped with radar, most of the private-plane traffic would be forced to sue outlying airfields. Such a reduction in the amount of private-plane traffic would reduce the risk of midair collision around the centrally located airports.

The conclusion drawn in the first sentence depends on which of the following assumptions?

AOutlying airfields would be as convenient as centrally located airports for most pilots of private planes.
BMost outlying airfields are not equipped to handle commercial-airline traffic.
CMost private planes that use centrally located airports are not equipped with radar.
DCommercial airliners are at greater risk of becoming involved in midair collisions than are private planes.
EA reduction in the risk of midair collision would eventually lead to increases in commercial airline traffic.