单项选择题

听下面一段对话,回答下列问题。
14-16
M: I am sure you’ve noticed a lot of things that are different about our school.
W: Oh, yes, in the United States, we don’t have to carry a big school bag with us like you do.
M: Why is that
W: We have a locker of our own which is a small box with a lock within textbooks and our personal things in it. I just bring a day pack to school.
M: A day pack
W: Yes, it is a small bag which you carry on your back.
M: What do you carry in it
W: A few books for homework.
M: That’s convenient. Is there anything else you’ve noticed about our school
W: Yes, I am surprised that everyone is so silent in class.
M: What do you mean
W: Well, we usually ask questions about exams, homework or textbooks on the first day of the school year. The teachers like such questions.
M: So you thought it different.
W: Yes, I expected to see a lot of discussions in class, because we learned that way in the United States.
M: I see, that would be a good topic for our school newspaper for the first month of the term. Nice talking with you. See you around. Bye.
W: Bye.

What did the girl notice()。

A. Many students asked questions.
B. The class was noisy.
C. There was not a lot of discussion.