单项选择题

Directions：
You will hear four dialogues or monologues．Before listening to each one, you will have 5 seconds to read each of the questions which accompany it．While listening, answer each question by choosingA, B, C or D．After listening, you will have 10 seconds to check your answer to each question．You will hear the recording only once．

Questions 11-14 are based on a conversation about exercising．

What can be inferred from the dialogue