F: We could have flown to Hangzhou, but I prefer traveling on rail. I like very much to watch the beautiful scenery by the window. ,M: I like traveling by train too. I think it had something to my sense of safety.
(A) F: Although traveling by train is not safe, we can enjoy the scenes outside. (B) F: Excuse me, could you repeat the question? (C) F: You are right. We should fly to Hangzhou. I think it's very safe. (D) F: Yes. Traveling by train is very safe. We should go to Hangzhou by train.
D