【单选题】

{{I}} Questions 1 to 5 are based on an interview.At the end of the interview you will be given 10 seconds to answer each of the following five questions. Now listen to the interview.{{/I}} According to the interview, chemicals contained in green tea actually help ______.

A、refresh one’s memory.
B．combat some diseases.
C．revive one’s spirits.
D．improve one’s physique.