F: What about leaving for the train station at 4:30 PM? ,M: I'm afraid that'll be too late. ,F: So, when do you think we should leave? ,M: Let's leave an hour earlier.
(A) F: Great! We will meet at 4:00 pm. (B) F: You mean 2 hours earlier? 3:30 pm? (C) F: Ok, but I am not sure we can leave at 3:30 pm. (D) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly?
C