Passage Two Questions 30 to 32 are based on the passage you have just heard.

What books are most popular among teenagers according to the survey?（）

A．A friend from New York.
B．A message from Tony.
C．A postal delivery.
D．A change in the weather.

A．They repaved it with rocks.
B．They built public restrooms on it.
C．They beautified it with plants.
D．They set up cooking facilities near it.