Given the task definition and input, reply with output. 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.

M: In England today, our schools mixed or single sexed. ,F: Well. There are both. 50 years ago, all schools used to be single sexed. I mean boys only or girls only. Then in the nineteen seventies, many schools changed and became mixed. ,M: Do parents still prefer mixed schools? ,F: No, things have changed. Today, many parents, especially parents of girls think that their children get a better education in single sex schools. ,M: Why do girls do better in single sex schools? ,F: Because girls learn to be more self confident and less worried about their appearance. ,M: What about boys? ,F: Well today, many parents of boys want to send them to mixed schools, they think that the girls will be a positive influence on boys.
(A) M: I am afraid I did not quite catch what you were saying. Please repeat it. (B) M: Yes, many parents believe that girls will have a positive effect on boys. So they support mixed schools. (C) M: American parents say that boys can learn to get along well with girls in future. So they like mixed schools. (D) M: It is a common sense in China that boys learn to be more confident and less worried about their appearance.
B