The specific identification inventory method cannot be used. a. when the unit sold is identified with a specific purchase. b. when each inventory unit can be specifically identified. c. by an automobile dealer where automobiles have unique serial numbers. Od. when all units sold are alike. Inventory turnover measures a. the times purchases are turned into inventory during the period. b. the efficiency and effectiveness of costing management. c. the relationship between cost of goods sold and the amount of inventory carried during the period. d. the average amount of inventory sold. When identical units of an item are purchased at different costs a. an inventory cost flow method is not used under either a perpetual or a periodic inventory system. b. an inventory cost flow method must be used under a perpetual inventory system only. c. an inventory cost flow method must be used under a periodic inventory system only. d. an inventory cost flow method must be used under both a perpetual and a periodic inventory system. What is not considered an advantage of using the retail method of inventory costing? a. The retail method allows management to monitor operations more closely. b. The retail method provides inventory figures for preparing monthly and quarterly financial statements when the periodic system is used. c. The retail method may be used as an aid in taking a physical inventory. d. The retail method uses specific costs to compute inventory