Burt Supplies, Inc., which uses a periodic inventory system, shows the following on December 31. Purchase Discounts $ 22,400 Freight-in 31,200 Purchases 840,040 Beginning Inventory 134,000 Ending Inventory 115,200 Purchase Returns 25,600 The cost of goods sold for the year is: A. $838,040 B. $795,640 C. $762,040