Zeui Company's material requirement for 1 year is 20,000 units. Ordering cost for each order is Rp. 500,000. Carrying cost is Rp. 20,000 / unit. The lead time is 14 days. Question: A. Calculate the EOQ and inventory costs when EOQ! B. Also calculate the inventory cost for 10 and 30 orders! C. If the average usage per day is 55 units and the maximum usage per day is 75 units, then calculate the safety stock and ROP!