Task: Dialogue Generation
Input (English): F: Frank and Peter want new bicycles. Petrol is very expensive, so they both want to cycle to work.
(A) M: I agree. It's cheap. (B) M: I agree. It's more convenient, although petrol is very cheap. (C) M: I am afraid I did not quite catch what you were saying. Please repeat it. (D) M: I agree. It's more environmental than driving, although petrol is very cheap.
Output (English): A