Questions 14 to 17 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.

Before the Bell Company became a publicly held corporation, how were the calls passed to their destination

A．Drive her to the test site.
B．Help her get ready for the road test.
C．Sell her a car.
D．Drive her car into her garage.

A．they lost a little ability to reason over the years
B．the only factor which declined over the years was their speed with which to perform mental tasks
C．their memory was not as good as it had once been
D．their minds became a bit more active as they grew older