问题
What information does a control chart provide to a project manager？
A:Indicates the need for variance analysis.
B:Illustrates how a process behanves over tim
C:Helps a project manager to change the project scop
D:Identifies the project risks.
B:Illustrates how a process behanves over tim
C:Helps a project manager to change the project scop
D:Identifies the project risks.
正确答案是：
