16. From the above equation D stands for? a. Daily Demand b. Standard Holding Costs c. Optimal Reorder point d. None of the above 17. With Project Management and Project Control what are the three elements that are required to keep a project on track i.e., the triangle must be balance other wise a change in one affects the others. a. Scope, Resource/Costs, Time b. Scope, Planning. Leadership c. Cost, Scope, Time d. All of the above e. None of the above 18. In project Planning WBS stands for what? a. Work Before Starting b. Work, Budget, Standard c. Work Breakdown Structure