pls help

AAA Company uses a periodic inventory system and has the following information regarding its inventory: Beginning inventory Purchase on January 25 Purchase on March 15 Purchase on October 2 Goods available for sale 400 units @ 15 500 units @ 16 400 units @ 17 600 units @ 18 $ 6,000 8,000 6,800 10,800 $ 31,600 There are 700 units in ending inventory. What is the amount of the ending inventory using the FIFO method? Multiple Choice $6,000 $14,000 $10,800 $12,500