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.

Example Input: M: Mother's birthday is getting close. Have you thought about what to buy for her this year? ,F: Oh, I totally forgot. It's already May tenth. Her birthday is the day after tomorrow, right? ,M: Yes, I will get mom a beautiful dress. It will make her look younger. What do you want to buy? ,F: Since you will buy her a dress, I'll buy her something else. What do you think of a pair of shoes? ,M: Do you know what size she wears? It may not fit her if she doesn't try them on first. ,F: You're right. Do you have any suggestions? ,M: Well, she saw a handbag when I was shopping with her last week. She seemed to like it very much. ,F: Why didn't she buy it? ,M: She couldn't accept the price, but she really liked it. ,F: How about going downtown tomorrow morning? We can get the present for her there. ,M: OK.
(A) F: And then I'll buy the beautiful handbag for her birthday. I believe she'll love it! (B) F: Since you are going to buy the handbag for mom's birthday, I'll buy the shoes for her. (C) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (D) F: Let me buy the handbag for you tomorrow as your birthday present, my son.
Example Output: A

Example Input: M: Hi, Maria, what are you up to? ,F: I'm just trying to plan my trip to Southeast Asia. ,M: Where are you planning to go? ,F: Well, I'm going to start by flying to Hong Kong. I have a friend there, who I haven't seen for a long time. Then I'll fly to Vietnam and take a bus down to Ho Chi Minh City. ,M: And then where will you go? ,F: Well, from there, I'll take the boat up River to Seam Reap, and see the famous temples. From there, I'll fly to Bangkok and try to get to the Chatuchak Market. I hear it's really great for shopping.
(A) M: Wow, I always think that taking boat up river to Seam Ream is quite romantic. (B) M: I am afraid I did not quite catch what you were saying. Please repeat it. (C) M: So, you'll go to the airport after you visit the famous ample, then fly to Seam Reap. (D) M: Why you chose boat to Hong Kong? There are many other ways to go there.
Example Output: A

Example Input: M: Keep running on this machine until I tell you to stop. It helps build up your leg muscle and make you look slimmer. Ready, go! ,F: OK, I will try as much as I can.
(A) M: You can stop running at any time. And take this pills, three times a day. (B) M: I didn’t hear you. Please could you tell me again? (C) M: OK. And what's wrong with your running machine? (D) M: You need to run faster. Listen to me. I'm a good fitness coach.
Example Output:
D