单项选择题

Questions 17 to 20 are based on the following passage. At the end of the passage, you will be given 20 seconds to answer the questions.Now, listen to the passage.

How do the cheerleaders perform their jobs()

A.They set fireworks for their team.
B.They put on athletic shows.
C.They run around the spectators.
D.They yell for people to buy drinks.