Susan is the senior Project manager and working with Bill. Bill is the PMO in the project and he is involved in the cost estimate process in project cost management. Susan and Bill are discussing about various costs in the project. They are discussing about all type of costs in the project which includes opportunity cost, direct cost, indirect cost etc. The cost to support the product from creation of product to day-to-day operations is called as, A. Direct cost.

B. Indirect cost.

C. Opportunity cost.

D. Life cycle cost.