F: Have you heard the news? Jim's office caught fire last night. ,M: What happened? Did someone forget to cut off the electricity? ,F: I heard that someone threw a cigarette button into the garbage bin last night.
(A) M: Really? Did the police find the arsonist (B) M: You mean a cigarette butt on the carpet caused the fire? (C) M: There are many cases caused by forgetting to cut off the electricity. And now there's another example. (D) M: I am really sorry, I did not catch that. Would you slow down, please?
D