One of the important advantages of using control charts in managing a production operation is that the control chart tells you when to take corrective action on the process being controlled. Another important result of using control charts is:

a. The control chart identifies the special causes.

b. The control chart tells you when you should not take corrective action.

c. The control chart shows how much the defects are costing.

d. The control chart shows who is responsible for the defects.