Questions 15 to 17 are based on the
following passage. At the end of the passage, you will be given 15 seconds to
answer the questions. Now listen to the
passage.
Why is the railroad industry gaining public support today
A．It contributes less to air pollution than other kinds of transportation. B．Its competitors are inconsiderate of customers. C．It preserves a traditional way of doing business. D．It creates personal fortunes for investors.