W: Room service. Can I help you? M: Yes. I'd like a dinner for two. And would you please send it to the room? W: Sure. Your room number, please? M: Room 5003. W: Ok. We'll get it ready in ten minutes. M: Thanks. By the way, was my room cleaned this morning? W: Yes. We clean all the rooms in the morning. Is there anything wrong? M: No, not really. Just that my wife can't find her watch anywhere. W: Just a minute. I'll go up and check it., Question: What do we learn from the conversation? (A) People can't have meals in the room. (B) The room is cleaned once a day. (C) The watch is stolen by the service people.
(B) The room is cleaned once a day.