Becker Inc. has the following inventory information in May 2020. Show computation to get possible partial points. Units Unit Cost Total Cost May 1 Inventory 300 $5 $1,500 12 Purchase 450 6 2,700 23 Purchase 750 8 6,000 31 Inventory 180 (a) Compute the cost of the ending inventory and the cost of goods sold under FIFO. (b) Compute the cost of the ending inventory and the cost of goods sold under LIFO. (c) Compute the cost of the ending inventory and the cost of goods sold using the average-cost method