F: Could you tell me how I get to DuPont station from here? ,M: Certainly. Take the Beltway and get off at exit 40B. Half an hour is enough. ,F: It's closer than I thought. I thought it would take an hour, thanks.
(A) M: Yes. You need about an hour to get to DuPont Station. (B) M: I’m sorry, I didn’t understand. Could you repeat a little louder, please? (C) M: Yes. You need about 30 minutes to get to DuPont Station. (D) M: Yes. You need about 30 minutes to get to the Beltway.
C