Maintenance should ________.

A.
Be considered part of the project life cycle because it is part of the total life cycle costing needed to do benefit/cost analysis in Collect Requirements

B.
Be part of the work breakdown structure to give the total scope of the required activities and effort

C.
Not be considered as a part of the project life cycle

D.
Be managed carefully because it is often a source of scope creep

Explanation:
Maintenance should not be considered as a part of the project life cycle