9) Identify the appropriate inventory model to obtain the optimal lot size for the given problem description:

A drugstore places an order every fourteen days for many of the items it stocks. The manager of the drugstore wants a service level of 98%. The replenishment lead-time is 2 days. Average demand for one specific item is normally distributed with a mean of 40 units per day, and the standard deviation of demand is 3 units per day.

Select one:

a. None of the listed

b. Fixed Order Interval

c. Single Period

d. ROP

e. EOQ