F: Those plane tickets on Saturday are so expensive. Can't you find anything cheaper before next Thursday? ,M: Well, if we want cheaper tickets, we can leave on Tuesday.
(A) F: Why do you say we will leave on Tuesday? Those plane tickets on Saturday are so cheap, and we can leave on Saturday! (B) F: So, you mean we will leave on Tuesday? (C) F: I am sorry. You spoke so rapidly that I did not catch the meaning of what you said. Could you repeat that? (D) F: Okay. Those train tickets on Sunday are so expensive so we will leave on Saturday!
B