Why is it important that reviews are conducted at regular intervals during the Check phase of the Plan-Do-Check-Act (PDCA) methodology?

A.
to be able to allocate roles and responsibilities

B.
to be able to define the objectives and requirements that are to be achieved by Service Management

C.
to be able to establish the Service Management policy, objectives and plans

D.
to determine whether the Service Management requirements are effectively implemented and maintained

Explanation:
A: Incorrect. This is a part of implementing the Service Management plan.
B: Incorrect. This is a part of the Service Management plan. During the Check phase it is important to review if the objectives are being achieved.
C: Incorrect. This is a part of Management responsibility.
D: Correct. This is a part of the standard with regard to the Check phase.