M: Hey Tina, What are you doing? ,F: I'm just reading some things on line about holidays, nothing special, why?
(A) M: What books are you reading? I am curious. (B) M: Mom told me you are on vacation. Where are you right now? (C) M: I am really sorry, I did not catch that. Would you slow down, please? (D) M: Stop reading books, Lucy is searching something interesting online. Let's go and find her.
C