Amman Company uses a periodic inventory system. The beginning inventory and the purchases during the current year, were as follows Total Cost Per Unit Price Units S1,800 S9 200 Beginning inventory Jan 11 4,750 S9.50 500 Purchases April 18 Aug 11 7,000 SIO 700 Purchases 6,150 S10.25 600 Purchases Oct 23 S19,700 2,000 Total At December 31 the onding inventory consisted of 900 units Computo the cost of the ending inventory based on tho FIFO mothod a. S9,150 b. 58,640 C. 58550 d. 89.225