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:
M: I was awaken up in the middle of the night. I felt the building shaking. ,F: What time did it happen? ,M: I don't know. It was dark everywhere. I couldn't see the clock. Luckily, I lived on the second floor. I hurried to run out. With the Moonlight I found it was 2:45.
(A) F: So, you could not see your watch because the electricity was cut off. But with the moonlight you found it was 3:45. (B) F: So, you mean you could not see your watch because the electricity was cut off. (C) F: I’m sorry, I didn’t catch that. Would you mind speaking more slowly? (D) F: So, you mean you could not see your watch because you hurried to flee for your life and you lived on the fifth floor?

Ex Output:
B


Ex Input:
F: Have you completed the arrangements for the trip yet, Brian? ,M: I've made the reservations, but there are still some details to make sure. Your plane leaves at 8:30, so I'll pick you up at your house at 6:00. ,F: 6:00? I'll have to get up in the middle of the night! ,M: I'm sorry. You have to check in by 7:00 and I think there will probably be a long queue. ,F: Oh, very well. What about my meetings? ,M: First, the Managing Director is coming to the airport to meet you.
(A) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (B) F: Good. I'm glad that the Managing Director is coming to the train station to meet me. (C) F: Good. I can't wait to see my doctor at the train station. (D) F: Good. I can't wait to see the secretary at the train station.

Ex Output:
A


Ex Input:
F: I've got to leave now, Bob. When shall we meet next week? ,M: Next Monday I won't be free. Let's make it next Tuesday.
(A) F: I am really sorry, I did not catch that. Would you slow down, please? (B) F: So we'll meet next Monday because you'll be free then, right? (C) F: Since you are free next Monday, why will we meet next Thursday? (D) F: OK, let's meet next Thursday.

Ex Output:

D