Inventory records for Marvin Company revealed the following: Date Transaction Number of Units Unit Cost Mar. 1 Beginning inventory 1,000 $7.20 Mar. 10 Purchase 600 7.25 Mar. 16 Purchase 800 7.30 Mar. 23 Purchase 600 7.35 Marvin sold 2,300 units of inventory during the month. Cost of goods sold assuming LIFO would be: $16,800. $16,760. $16,540. $16,660.