What does the man who drives a fancy car tell Chris about how to become a stock broker ？

What does the man who drives a fancy car tell Chris about how to become a stock broker ？
A.One needs to have a college degree.
B.One needs to be very clever.
C.One needs to be good at numbers and be good with people．
D.One needs to work very hard．
正确答案：One needs to be good at numbers and be good with people．