Darla's Card Shop uses the average cost retail inventory method to determine the ending inventory. Darla's accounting records for 2014 contained the following information: Cost Retail Purchases $216.000 $317,500 Sales 350,000 Beginning inventory 64,000 78,500 Net markups 12,000 Net markdowns 8,000 In addition, sales returns for 2014 were $28,000, and employee discounts taken were $6000. What is the cost of the ending inventory at December 31, 2014? A. $21,000 B. $35,000 C. $50,400 D. $54,600