单项选择题

[听力原文]6-7
W: Hey, Herb! What’s up
M: I’ve been busy lately.
W: Doing what
M: I’ve been spending a lot of time on-line.
W: On line
M: On the Internet, talking to people in chat rooms.
W: Is that helping you with your shyness
M: Yeah! It’s easier than talking face-to-face.

What has Herb been busy doing recently()

A.Cyber chatting.
B.Making friends.
C.Writing letters.
D.Sending e-mails.