听力原文:M: What do you think you'll be doing in five years' time, Carrie?
W: I definitely won't be working as a car park attendant. I want to become an opera singer.
I hope I'll be living in Milan. What about you, Frank ?
M: Unless I pass my exams, I'll probably serve rude customers in the restaurant.
W: Come on. Don't be so sad. Cheer up, Frank.
Why is Frank so sad about his future planning?
A. Because he wants to be a singer but he cannot.
Because he won't be able to live in Milan.
C. Because he is afraid that he cannot pass the examination.