2 (3 points) The units of an item ABC available for sale during 2020 were as follows: Jan. 1 Sep. 17 Nov. 10 Inventory 17 units at $3,600 $ 61.200 Purchase 23 units at $4,100 94,300 Purchase 20 units at $4,900 98.000 Available for sale 60 units $253.500 There were 25 units of the item ABC in the inventory on December 31, 2020. If the periodic inventory system is used, determine the inventory cost using the three methods: the first-in, first-out (FIFO) method, b. the last-in, first-out (LIFO) method, c. the weighted average cost method