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Start the planWhich of the following, if true, most helps to explain the disproportionate increase in customer complaints?
(A) Comfort Airlines had more flights last year than the year before.
(B) Last year a single period of unusually bad weather caused a large number of flights to be delayed.
(C) Some of the improvements that Comfort Airlines made in its service were required by new government regulations.
(D) The average length of a flight delay was greater last year than it was the year before.
(E) The average number of passengers per flight was no higher last year than the year before.
OA D
Source: Official Guide













