Alta Ski Company's inventory records contained the following information regarding its latest ski model. The company uses a periodic inventory system. Beginning inventory, January 1, 2021 Purchases: January 15 January 21 20.03 Sales: January 5 1,400 units @ $60 each 2,900 units @ $75 each 2,700 units $80 each $100 each January 22 January 291 Ending Inventory, January 31, 2021 1,350 units 1,750 units @ $110 each 1,200 units @ $115 each 2,700 units Required: 10. Which method, FIFO or LIFO, will result in the highest cost of goods sold figure for January 2021? 1b. Which method will result in the highest ending inventory balance? 2. Compute cost of goods sold for January and the ending inventory using both the FIFO and LIFO methods. 3a. Assume that inventory costs were declining during January. The inventory purchased on January 15 had a unit cost of $50, and the inventory purchased on January 21 had a unit cost of $45, All other information is the same. Which method, FIFO or LIFO, will result in the highest cost of goods sold figure for January 2021? 3b. Which method will result in the highest ending inventory balance? 3c. Compute cost of goods sold for January and the ending inventory using both the FIFO and LIFO methods. Answer is not complete.