听下面一段较长对话，回答以下小题。
【小题1】What did the study say about Fitbit?

A．It is of no use.

B．It is not accurate.

C．It is not suitable for exercise.

【小题2】What does the man advise the woman to do?

A．Try a cheaper one.

B．Buy one for herself.

C．Wear Fitbit only when running.

【小题3】What does the man think of Fitbit?

A．It is worth it.

B．It’s valueless.

C．It’s uncomfortable to wear.