A、An evening party. B、A welcome party. C、A farewell party. D、A birthday party. C本对话中女士说“欢迎来参加我的告别会。”由此可知，男士应该是去参加了这位女士的告别会，故选C。

M: Here is your coat.
W: Thanks. It’ s very kind of you to invite us.
Q: What is the probable relationship between the two speakers?

W: Thank you for your coming to my farewell.
M: It’ s very kind of you to invite me.
Q: Where did the man come?