单项选择题

[听力原文]
M: The faculty already knows that attending the seminar is a requirement for completing the programme. Why do I need to sign for it
W: It just works that way. They just want to make sure nothing is off track.

What do we learn from the conversation()

A.The man forgot to sign for the seminar.
B.The signing is just a reassurance.
C.The seminar was actually cancelled.
D.The woman likes the seminar very much.