Since risk is associated with most projects, the best course of action is to （）.

A.cover all project risks by buying appropriate insurance

B.ignore the risks, since nothing can be done about them and move forward with the project in an expeditious manner

C.avoid projects with clear and present risk

D.identify various risks and implement actions to mitigate their

圆鼎需要（）块陶范。

A.两

B.四

C.三

D.五