【正确答案】 C

【答案解析】[听力原文]
   M: So, Doron, what did you do last Valentine's Day?
   W: Last Valentine's Day I got disappointed I think, because I taught at university, and I've heard that Japanese students always give their teachers loads and loads of chocolate.
   M: Oh, really?
   W: How about you? Are you looking forward to it this year?
   M: I'm planning on going to South Korea with my co-workers to escape the Valentine's Day.
   W: To escape?
   M: Atmosphere, yes.
   W: You're not a fan then?
   M: I like Valentine's Day, but I don't plan on celebrating it this year. Is Valentine's Day big in England?
   W: I haven't lived in England for a while now, about ten years. When I was a kid it was big in the school, like in junior school, and we used to have a little Valentine's postbox in our class where we could write little messages to our classmates and then we put it in the box and it'd get delivered.
   M: Oh, in a box?
   W: Yeah, in a little Valentine's postbox. The teacher would deliver them.
   M: Did you only get notes or did you get candy as well?
   W: No, it was just notes. In England we don't really give candy and chocolate and presents to people. We just give letters, unless it's like a boyfriend or a girlfriend or something. But when you are seven, you don't really bother.
   Why did the woman feel disappointed on last Valentine's Day?