A company purchased 400 units for $60 nach on January 31. It purchased 250 units for $35 each on February 28. It sold a total of 300 units for $60 each from March 1 through December 31. If the company uses the weighted average inventory costing method, calculate the cost of ending inventory on December 31. (Assume that the company uses a perpetual inventory system Round any intermediate calculations two decimal places, and your final answer to the nearest dollar) OA. $32,750 OB $17.633 OC. $15.117 OD. $16.625