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A company has the following inventory information and uses the periodic system May 1 Beginning Inventory 15 units at $1 each May 4 Purchase 12 units at $2 each May 7 Sale 21 units The company uses the FIFO method of inventory costing. What is the cost of goods sold and the ending merchandise inventory? GE OA COGS $27; Merchandise Inventory 512 OB. COGS $33; Merchandise Inventory S6 OC. COGS 512; Merchandise Inventory $27 OD. COGS $6; Merchandise inventory $33