A、She will not have time to prepare lunch. B、She has to cancel her plan to have lunch with the man. C、She does not remember disc

M: Sorry, I’m late, I had to stop at home after work to put on a suit and tie. You know, it’s a formal party.
W: You probably should not bother it.  And look around you, half of the guys here wear jeans and sweaters.
Q: What does the woman imply?

M: We still haven’t decided on the time for lunch tomorrow.
W: Oh, I forgot to tell you. I won’t be able to make it after all.
Q: What does the woman mean?