Gertrude Lang lost confidence and even wanted to give up the clarinet. How did Glenn Holland help her gain confidence?

A.Mr. Holland urged her to go on practicing.

B.Mr. Holland walked with her, enjoying the sunset.

C.Mr. Holland encouraged her to play the clarinet, following her heart, like her feeling of sunset.

D.Mr. Holland made up many classes for her in his spare time.

正确答案：Mr. Holland encouraged her to play the clarinet, following her heart, like her feeling of sunset.