O 150 AS Vio 17 of 20 CDX Inc., uses a periodic Inventory system. Consider the following us and selected information for CDX's most recently completed fiscal year ved Bons ch: 60 Gross purchases (all on account) 571,700 Purchases returns and allowances 2.000 Merchandise inventory, January 1 15.000 Merchandise inventory, December 31 19.000 Cash payment to suppliers 52,000 Based on these details, the cost of sales for the year is O A $67,700 OB. $13,700 OC $65,700 OD$48,000 Unsure