Questions 11 to 13 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. Who firstly used flexible working hours

A．He has a good sense of direction.
B．He owns a "smart" car.
C．He doesn’t know how to drive.
D．He doesn’t know the way to the woman’s house.

A．It’s because there are many developing nations.
B．It’s because people use too many man-made materials.
C．It’s because we have more and more industry.
D．It’s because we are building more vehicles.