Questions 18 to 20 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.

After which year did the town really begin to develop

A．He used to be the star player in high school.
B．He has put on much weight now.
C．He likes fresh fruits and vegetables.
D．He stopped playing basketball five years ago.

A．Around the 9th century.
B．Around the 13th century.
C．Around the 15th century.
D．Around the 16th century.