M: Hi, this is the Friends of the Environment office, isn't it? ,F: Yes, it is.
(A) M: Yeah, I know that I'm at a factory now. (B) M: Great! I'm so glad to leave your office. (C) M: Great! I'm so glad to be at your office. (D) M: I am really sorry, I did not catch that. Would you slow down, please?
C