单项选择题

Questions 4 to 7 are based on the following conversation. At the end of the conversation, you will be given 20 seconds to answer the questions.
Now, listen to the conversation.

What is fly-drive

A.To have a car waiting at the arrival airport.
B.To rent a car that can be driven fast.
C.To have a car tour.
D.To visit many places in a short time.