QUESTION 6 A. Calculate {EOQ} using following information for APEX Inc. i. Annual den1and 90,000 units ii. Cost of placing order 35 30 iii. Cost of carrying 1 unit in inventory $9 B. Calculate average inventory when safety stock is 2,000 units. C. \"In the process of maintaining inventory records and physical count of goods on hand, error may occur.\" Explain. (20 marks}