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(A) In return, they received some form of compensation, like a voucher for a free flight.
(B) Airlines seem to have regarded it as a priority, especially in the face of record fuel prices.
(C) As a result, bumping seems to have become a necessary part of doing business in the American airlineindustry.
(D) However, airlines seem to be using overbooking as a business strategy, especially for the financially troubledcarriers.