The following table contains information about the inventory management of a stock-keeping unit. Using this information, what is the economic time interval for securing an optimal policy for a fixed-period system (FPS)?

Information for a Fixed-Period System Inventory Management

Demand17,000

units per yearOrder Cost$50 per order

Inventory-Holding Cost$0.5 per unit per year

Lead Time2 weeks

Standard Deviation in Weekly Demand7Service

Level95 percent

which is the following is the correct answer

a) More than 6 weeks but less than or equal to 9 weeks

B)Less than or equal to 3 weeks

C)More than 3 weeks but less than or equal to 6 weeks

D)More than 9 weeks