单项选择题

Questions 5 to 7 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 is a fee of $27 for

A.The registration fee.
B.The weekly cost for bed, breakfast and dinner.
C.The fee of the first course.
D.The cost of the tax for the course.