March 1 Beginning Inventory March 8 Purchased March 17 Sold March 25 Purchased March 31 Sold 140 units at a cost of $6/unit 60 units at a cost of S5/unit 150 units at a retail price of $15 /unit 40 units at 54 / unit 60 units at a retail price of $12 /unit B. FIFO C. LIFO