Al-fahad, co uses the periodic inventory system. For the current month, the beginning inventory consisted of 1,200 units that cost OMR 12 each During the month the company made two purchases: 500 units at OMR 13 each and 2,000 units at OMR 13.50 each. Allahad also sold 2,000 units during the month Using the LIFO method, what is the ending inventory? Select one: O a OMR 18,000 O b. OMR 20,900 O COMR 20,700 O d. OMR 21,200