A Moving to Question 2 This is NOT a reason or excuse to story inventory To take advantage of economic purchase-order size To deprive competitors of the stocks of raw material To provide a safeguard for variation in raw material delivery time To maintain independence of operations A Moving to the next question prevents changes to this answer. Question 4 This inventory control model that specifies inventory is ordered at the end of a predetermined time period. The interval of time between orders is fixed and the order quantity varies. a. single-time period mode b. fixed-time period model Ac fided-order quantity model Od. all of the above