[求助]At新手一題不知為啥請幫忙...

andy7788

In order to relieve congestion in the airspace near the airports of a certain country , transporation officials propose sending passengers by new rapid trains between the country's major airport and several small cities within a 300-mile radius of it.                            This plan was proposed even though the officials realized that it is the major airport that is congested , not those in the small cities.                                                   The plan to relieve congestion would work best if which of the following were true about the major airport?                                                         (A)There are feasible changes in the airport's traffic control system which would significantly relieve congestion.                                             (B) A significant proportion of the airport's traffic consists of passengers transferring between international flights and flights to the small cities.    為什麼A錯呢?標準答案是B