单项选择题

Questions 8 to 10 are based on the following conversation. At the end of the conversation, you will be given 15 seconds to answer the questions.
Now, listen to the conversation.
What bothers Nancy about her neighbors’ son

A.He drives too fast.
B.He plays his guitar too loudly.
C.His radio wakes her children up.
D.His friends are too noisy.