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.

Ex Input:
F: I'm so sorry I'm late, Mister Stone. ,M: I think I did ask Miss Jones to inform everyone that the meeting started at 11:00 sharp, now 10 minutes have passed already. ,F: I'm really sorry, Mister Stone. It's raining cats and dogs, and I had to wait ages for a taxi.
(A) M: I didn’t hear you. Please could you tell me again? (B) M: I know it's raining today, but the others are not late. That's no excuse. (C) M: It's windy today. Waiting for the bus to go to work is not a good choice. (D) M: It's hot today, so I asked Amy to inform everyone of the 12 o 'clock meeting.

Ex Output:
B


Ex Input:
F: The children have been playing in the mountains for a long time. Why haven't they come back? I am really worried about them. ,M: Look at the sky. Black clouds are gathering and strong winds are blowing. It seems a heavy rain will fall soon. ,F: They haven't brought anything to protect themselves. They will be caught in the rain I think. ,M: Don't be worried too much about them. Anyhow, they're old enough now. They ought to be able to take care of themselves. ,F: I'm afraid they will catch a cold if they are caught in the rain. You see it's a little cold now.
(A) M: I’m sorry, I don’t understand. Could you say it again? (B) M: Don't worry, they will not be caught in the heavy rain. It is sunny outside. (C) M: You can ask them if they pass the exams directly, they are in their bedrooms. (D) M: Don't worry about the children, they won't be caught in the heavy rain.

Ex Output:
D


Ex Input:
F: The furniture is nice, I think I'd like to take it. Could you deliver it to my house? ,M: Of course, delivery costs another $145, so it's $1450 in total.
(A) F: The furniture costs $1,305. (B) F: The delivery costs $1,305. But the furniture just costs $145. (C) F: Excuse me, could you repeat the question? (D) F: The furniture costs $1,595.

Ex Output:

A