A、On September 10. B、On October 26. C、On Sunday. D、On Saturday. Section C DWhen will they go on a trip?

M: Hi. I have some good news for you.
W: What is it?
M: The teacher suggested that we go on a trip this Saturday.
W: Oh, wonderful. Where shall we go?
M: How about going to the park?
W: I don’t think it’s a good place to go to. We can go there another time. We should go farther away this time.
M: Where do you think we should go then?
W: How about the reservoir in the suburbs?
M: I don’t think it’s a good idea. It’s not safe. Why not go to the mountain instead?
W: That sounds good. Let’s go to the mountains to the south of the city.