please answer only if you are 100% correct.

A local cement manufacturing factory produces cement bags, and each bag is 100 kg in weight. The daily demand 20,000 kgs per day. The company produces daily at a rate of 50 percent more than the daily demand. Assuming there are 250 workdays, the setup cost is 1000 OMR and the annual holding cost is 1 OMR per kg. What will be the optimal total cycle time including the production time in days? Round-up to the nearest integer O a None is correct Ob. 7 Od 9 Oe. 10 A local merchandise store places order every 4 weeks. The weekly demand for a product it orders periodically has been observed to have followed the normal distribution with a mean of 50 units and standard deviation of 10 units. The lead time to receive the order once it is placed is 1 week. Lead time is assumed not having any uncertainty. The store would like to maintain a service level of 90 percent. Given there are 50 units already in stock what should be the order quantity? O a. 237 Ob 229 Oc None is correct O d220 O e 219