单项选择题

[听力原文]
W: What does your brother do for a living, by the way
M: He’s an engineer. He often says he’d earn far more if he were a doctor.

What do we learn about the man’s brother()

A、 He will be a doctor.
B、 He is in hospital.
C、 He doesn’t like his profession.
D、 He wishes to be a manager.