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: Hi, Helen, I saw you yesterday with a lovely little girl at the market. Your daughter? ,F: No, she's my sister's daughter, she's just visiting and will be staying with us for a couple of days.
(A) M: Oh, that's your niece then, she's really cute. (B) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (C) M: Your niece is so cute, I didn't know your brother had a daughter. (D) M: Your daughter looks a lot like you.

Ex Output:
A


Ex Input:
F: Where are you going to plant the tree, by the front door? ,M: No, that would be silly. I'll put it next to the garage. ,F: Wouldn't it be better in the backyard? ,M: Well, you're quite right. Let's go now.
(A) F: Are you going to plant the flower by the front door? (B) F: Cool. Let's plant the tree in the back yard. (C) F: I am afraid I did not quite catch what you were saying. Please repeat it. (D) F: Do you still want to plant it next to the garage? It wouldn't be better in the backyard.

Ex Output:
B


Ex Input:
M: Welcome to cars rental company, what can I do for you? ,F: I need to rent a car for 8 days. What are your rates? ,M: $30 a day.
(A) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (B) F: Okay. I will spend $210 in car rent. I need to rent a car for 9 days. (C) F: No problem. I have to pay $240 for all rates. I would like to rent a car for 9 days. (D) F: So I will pay $240 in total, if I want to rent for 8 days.

Ex Output:

D