质量失效引起的内部问题是什么？

听力原文：W: Good morning, sir. M: Good morning. W: Did you have a good night M: I slept very well last night. W: I am glad to hear that. How do you like your room M: I like it very much. It’s not big, but it’s clean and comfortable. By the way, do you wash clothes in the hotel W: Yes, we do. Just leave your clothes in the laundry bag. It’s in the toilet. M: Will that be ready this afternoon We’re leaving tonight. W: Yes. M: Thank you. W: Not at all. Have a nice day. 8. How is the room he stays in （）A．It is big and comfortableB．It is small but clean．C．It is pleasant and tidy．D．It is quiet but colD．