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题库 / GMATAdvanced-CR-20
A country ’ s Aeronautics Board (AB) employs inspectors who make routine annual inspections of all aircraft. On inspecting Azura Airlines’ airplanes in December, they reported considerably more violations of AB rules this year, compared to a year ago. This fact explains why Azura had more accidents this year, compared to last year.
Which of the following, if true, would cast most doubt on the conclusion in the passage?
Some aviation experts in other countries consider certain AB rules to be too lax and too easy to get around.
Azura’s routes are no more dangerous than are those of most other airlines.
The AB increased the length and rigor of its inspections this year, compared to last year.
Prior to last year Azura had an excellent safety record with very few accidents.
In both years the AB report on Azura did not include violations on airplanes owned by Azura but leased by another airline.
C. Correct. This statement provides an alternative reason that the number of violations for Azura Airlines would have increased. That is, if the AB conducted more extensive and more rigorous inspections this year, then it is very likely that the number of violations found by the AB would increase. In other words, if more points are tested or existing tests are made stricter, then the increase in rigor of the testing would presumably lead to an increase in violations.
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