W: Here's your bill, sir. M: Oh, thank you. Let's have a look at it now. Goodness, it's a lot more than I expected. W: Would you like me to explain anything, sir? M: Just a moment. Yes, what's this charge for $ 21.50 marked "J"? W: "J" is a charge for a long distance telephone call, sir. Did you make a telephone call that night? M: Yes. I remember now. Good heavens! We must have talked for a long time. And these ones, "L" for $ 32.40, and here's another, $ 9.50. What are they for?, Question: Why did the phone charge surprise the man? (A) He didn't make any calls. (B) He didn't talk with the woman. (C) He didn't know he owed so much.
(C) He didn't know he owed so much.