M: Hello, tourist information, what can I do for you? ,F: Hello. I'm phoning about the boat trips on the river D? Can you tell me which days they are? ,M: Sure, they go every Friday and Sunday.
(A) F: Excuse me, could you repeat the question? (B) F: I want to travel on the river C. (C) F: I want to travel on the river D. (D) F: I want to travel in a park.
C