Railroad spokesperson: Of course it is a difficult task to maintain quality of service at the same time that the amount of subsidy the taxpayers give the railroad network is reduced. Over recent years, however, the number of passengers has increased in spite of subsidy reductions. This fact leads to the conclusion that our quality of service has been satisfactory.
The spokesperson’s argument is based on which one of the following assumptions?
(A) Taxpayers do not wish to have their taxes raised to subsidize the railroads.
(B) Some people refuse to travel by train if they are dissatisfied with the quality of service.
(C) The quality of service on the trains must have improved in spite of subsidy reductions.
(D) It is impossible to reduce subsidies to the railroad network without some effect on the quality of service.（B）
(E) The increase in the number of passengers will increase revenue sufficiently to offset the subsidy reductions.
请教为何C不对？？
结论是our quality of service has been satisfactory
因为the number of passengers has increased in spite of subsidy reductions
(b)是最好的桥梁
(c)我们要的是satisfactory而不是The quality of service improved
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