听下面一段独白，回答以下小题。
【小题1】

A．To start off as a listener.	B．To speak right away.
C．To learn and listen quietly.	D．To talk about their lives.

【小题2】

A．They can hear and appreciate interesting videos.

B．They can drop their worries and problems.

C．It can help people make more online friends.

D．They can enjoy the safe space for expression.

【小题3】

A．To enable the users to enjoy more freedom to say anything.

B．To find a way to track discussions and protect users.

C．To provide a space for hateful speeches and false statements.

D．To tell whether the impact of the app is helpful or harmful.