Definition: In this task you are given a small conversation between two persons and 4 options on how the conversation should continue. Your job is to choose the most reasonable option. The conversation and the options are separated by a newline character. Each dialogue in the conversation are separated by a comma. F and M indicate female and male, respectively.
Input: M: So, to start with, I want to talk about a very successful invention, the bicycle. Why? Do you know what the main advantages of bikes are? ,F: They don't cost much? ,M: Yes, and they're not complicated. ,F: They're easy to use. Yeah? ,M: Not easy when you're going uphill. Let's say simple. ,F: OK. Yeah. They're cheap to run. They don't often breakdown. They're safe.
(A) M: Easy to use but they are expensive. (B) M: I disagree, motorcycle is simple to use rather than bicycle. (C) M: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (D) M: Cheap to run but they are not simple to operate.

C