F: Would you please tell me something about your best holiday, Jason? ,M: Well, it was my trip to Nepal. We went there 10 years ago, walking in the mountains for 20 days. ,F: That's a long time. How far did you walk everyday? ,M: 15 kilometers or so. We had to climb up and down a lot everyday. At times, it was hard to walk as the air there was very thin and we had a lots of problems breathing, which made me anxious and depressed.
(A) F: I am afraid I did not quite catch what you were saying. Please repeat it. (B) F: Wow, 15 km per day! Good on you! It seemed a bit tough those days. (C) F: 15 km is a little bit far for you now. But back to 5 years before, it didn't matter. (D) F: Wow, 20 km per day! That's far beyond for a young women like you!
B