M: Hello, Nancy. I'm sorry, but I just missed the 8:50 bus to the museum. I'm afraid I'll be a little late. W: It doesn't matter. The next bus will be coming at 9:00. You can catch that one. The museum opens at 9:30., Question: How long does the man have to wait for the next bus? (A) 10 minutes (B) 20 minutes (C) 30 minutes
(A) 10 minutes