Conversation 2Questions 8 to 10 are based on the conversation you’ve just heard.[听力原文] 8-10M：Hi I have some good news for you.W：What is itM：The teacher suggested that we go on a trip this Saturday.W：Oh，wonderful. Where shall we goM：How about going to the parkW：I don’t think it’s a good place to go to. We can go there another time. We should so farther away this time.M：Where do you think we should go thenW：How about the river in the suburbsM：I don’t think it’s a good idea. It’s not safe. Why not go to the mountains insteadW：That sounds good. Let’s go to the mountains to the south of the city. When will they go on a trip（）

A. On September 10.
B. On October 26.
C. On Sunday.
D. On Saturday.