The units of an item available for sale during the year were as follows: Jan. 1 Aug. 13 Inventory Purchase Nov. 30 Purchase Available for sale 17 units at $24 $408 8 units at $25 2001 10 units at $26 260 35 units $868 There are 21 units of the item in the physical inventory at December 31. The periodic inventory system is used. Determine the Inventory cost using the (a) first-in, first-out (FIFO) method; (b) last-in, first-out (LIFO) method; and (c) weighted average cost method (round per-unit cost to two decimal places and your final answer to the nearest whole dollar). a. First-in, first-out (FIFO) method b. Last-in, first-out (LIFO) method c. Weighted average cost method