【单选题】

{{I}}Questions 14-19 are based on the following conversation. You now have 30 seconds to read the questions 14-19.{{/I}} Why does the woman wantDavid to sign up for the course

A、He needs to take one more course in order to finish his credit requirements.
B．He plays an instrument the group needs.
C．She thinks taking the course would improve his grades in general.
D．She thinks he’s the best musician at the college.