Problem 3 (15 points): Seneca Co, began year 2019 with 6,500 units of product in its January 1 inventory costing $35 each. It made successive purchases of its product in year 2019 as follows. On December 31, 2019, a physical count reveals that $18,500 units of its product remain in inventory January 4 May 18 July 9 11,500 units 13,400 units 11,000 units 16,500 units @ $33 each @ $32 each @ $29 each @ $26 each November 21 Using, the periodic system of inventory, compute the amounts assigned to the 2019 ending inventory and the costs of goods sold using the following methods a FIFO b. LIFO c. Weighted average