A、Saturday. B、Sunday. C、Friday. D、After the summer. C根据女士所说Meet me on Friday in front of my house.可知他们计划周五再见，故答案选C

M: Hey Jane, where are you going this weekend?
W: Hi, Bob. I’m going to the beach. 13o you want to come too?
M: Yes, that sounds like fun. Which beach are you going to?
W: I was thinking of going to Huangdao’s Beach. I like to watch the sea birds and wildlife there.
M: That sounds great! When do you plan to leave?
W: Well, I think at about four o’clock on Friday.
M: Great. Where should we meet?
W: Meet me on Friday in front of my house.
M: OK, I’ll see you then. Bye.