单项选择题

A: Hey, is Susan on fie debate team? She’s wearing a purple shirt today, doesn’t everyone on the team wear a purple shin on days when you’re having a debate?
B: I guess, But other people some times wear purple colored shirts too you know.
Q: What does the man mean?()

A.Susan might not be a member of the debate team.
B.Susan often wears purple shirts.
C.He doesn't want to go to the debate.
D.He didn't notice what Susan was wearing.