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: Mr Parker. When did you arrive home yesterday evening? ,M: At about 8:00 o'clock? ,F: What did you do right after you entered your flat? ,M: Well, I washed my hands and then watched the Sports News. ,F: When did you have supper? ,M: At about 8:45 I guess. ,F: Did you stay at home all evening? ,M: Yes. ,F: But your friend said, that he phoned you several times between 8:00 and 9:00. But you didn't answer. ,M: Well, I think I was in the bath at that time. ,F: No, you weren't, you were not even at home last night, you robbed a bank in James Street.
(A) M: So, you mean I was not even at school last night and I had been to James Street the night before? (B) M: So, you mean I was not even at home last night and I had been to James Street the night before? (C) M: I am really sorry, I did not catch that. Would you slow down, please? (D) M: Really? You mean I robbed a bank in Smiths Street and I had been to my friend's home the night before?

Ex Output:
B


Ex Input:
M: Mom, I want a puppy. ,F: Let me think about it. ,M: Why do you have to think about it? ,F: Because puppies cost money. ,M: No, they don't. Puppies are free. ,F: Yes, but puppies need their shots. ,M: Shots for what? ,F: So they won't get sick, just like why you get your shots. ,M: I hate shots. ,F: And puppies have to eat. Food costs money. ,M: No problem. I'll give him some food off my plate. ,F: Oh, no, you won't. Puppies don't eat vegetables.
(A) M: I am really sorry, I did not catch that. Would you slow down, please? (B) M: I can take good care of the puppy. It won't get sick and don't need to buy shots. (C) M: Yes, I promise I can build a house for the puppy. They won't cost any. (D) M: That's great! Puppies eat vegetables, so I can give the puppy some of my food.

Ex Output:
A


Ex Input:
F: Which type of washing machine have you decided on? ,M: I'm still not sure. ,F: We have many brands. Little Swan is domestic. Philipson, Panasonic are imported. ,M: Which one is of the highest quality?
(A) F: The only one I recommended has the highest quality. (B) F: It's hard to say which one in those three brands is the best in quality. (C) F: It's hard to say. You can choose between the two brands I told you. (D) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that?

Ex Output:

B