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: F: The book is so interesting. ,M: If you like, I can lend it to you. I borrowed it from the library one week ago. And there are still 2 weeks left.
(A) F: It sounds great that you can keep the book for three weeks. (B) F: Just a minute! I do not quite follow what you are saying, would you mind repeating that? (C) F: It's too short that you can only keep the book for one week. (D) F: It sounds great that you can keep the table lamp for three weeks.
Example Output: A

Example Input: M: I have read Mark Twain's book, The Adventures of Tom Sawyer. It's quite interesting and adventurous. ,F: But this book I'm reading is kind of boring. It only tells you some facts about Mark Twain. ,M: Oh, tell me something about Mark Twain, please. ,F: Well, when Mark Twain was 4, his family moved to Hannibal, a port town on the Mississippi River that gave him the idea for writing the book, The Adventures of Tom Sawyer. ,M: Oh, really? Anything else? ,F: In eighteen fourty-seven, when Twain was 11 years old, his father died. The next year, he began to learn printing. When he was 18, he worked as a printer in New York City. ,M: What happened next? ,F: Then on a voyage to New Orleans, the steamboat pilot, Horace, inspired Twain to become a pilot. And Mark Twain really received his steamboat pilot license in eighteen fifty-nine, after 2 years of hard work.
(A) M: So, on the voyage to New Orleans, Mark Twain wanted to be a pilot but Hannibal gave Mark Twain the idea to write a book? (B) M: So, New Orleans gave Mark Twain the idea to write a book but when he was 18, he still worked as a printer in London? (C) M: So, as Mark Twain never received his steamboat pilot license, he finally became a writer and Hannibal gave him the idea to write a book? (D) M: Just a minute! I do not quite follow what you are saying, would you mind repeating that?
Example Output: A

Example Input: F: Doctor Joseph, why did you want to be a doctor? ,M: Both my dad and mom were doctors and I wanted to be like them. But it all started to be more than imagination once I got to college. ,F: What do you mean? ,M: Well, when I was a freshman, I didn't know what I wanted to major in. So I took a health class that included an emergency first aid certificate. I figured it would be useful to know how to help someone an emergency if they needed it. ,F: Sounds good. ,M: Well, one night as I was walking back to my dorm. I saw a woman on the ground who had stopped breathing. I gave her mouth to mouth breathing and called 911. By the time the ambulance arrived, she had been able to breathe normally. In addition, she left the hospital the next evening. The doctor said that I had saved her life. ,F: Amazing! You were a hero. ,M: And that was the night that I decided to study medicine. ,F: Alright. We're going to take a quick commercial break. But don't touch your remote control. Because when we come back, Doctor Joseph is going to tell us something about what he does at Johns Hopkins Hospital, including some of the scarier moments he's had as a physician. Stay tuned.
(A) M: I will sharing these first aid methods with you. They are very useful in life. (B) M: After all these years in the hospital, I also encountered other dangerous occurrence as a physician. (C) M: I can share you some happier moments in my life in the next. (D) M: I’m sorry, I don’t understand. Could you say it again?
Example Output:
B