Charleston Company Uses the Periodic Inventory System

Charleston Company uses the periodic inventory system. For the current month, the beginning inventory consisted of 1,200 units that cost $45 each. During the month, the company made two purchases: 500 units at $43.50 each and 2,000 units at $42 each. Charleston Company also sold 2,150 units during the month.
Using the periodic , what is the cost of ending inventory?

A) $65,100
B) $56,850
C) $60,219
D) $55,800