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: How may I help you? ,M: I need to buy some clothes for my daughter. I don't know what size to get. Can you help me? ,F: Certainly. How old is she? How tall is she? ,M: She is 9 years old and 4 feet tall. ,F: We have a great selection of clothes for young girls. Pants start at $10 and shirts start at $7.
(A) M: Really? You have a great selection of clothes for young boys and the cheapest shirt is just $10? (B) M: Excuse me, could you repeat the question? (C) M: So, as you mean pants start at $15 and shirts start at $7, the cheapest shirt is just $7? (D) M: Really? The cheapest shirt is just $3? Oh, I need to buy some clothes for my wife.

Ex Output:
B


Ex Input:
M: When will we meet at the cinema? ,F: Tom can leave school at 4:00 o'clock. I may get there at 5:00 o'clock. Let's say 6:00 o'clock.
(A) M: So let' meet at 6:00 o'clock. (B) M: So let' meet at 5:00 o'clock at the restaurant. (C) M: I’m sorry, I don’t understand. Could you say it again? (D) M: So let' meet at 6:00 o'clock at the restaurant.

Ex Output:
A


Ex Input:
F: Why has Jerry been acting so mean to everyone? ,M: I don't know, but I'm sick of it. ,F: Me too. I'm going to say something to him. ,M: Let me know what he says.
(A) F:  I will. I shall tell him that everyone likes him. (B) F: I will. Someone got to tell him that he is annoying everyone. (C) F: I’m sorry, I don’t understand. Could you say it again? (D) F: I will. I really worried about him, I shall talk to him right now.

Ex Output:

B