A company purchased 90 units for $20 each on January 31. It purchased 170 units for $25 each on February 28. It sold 170 units for $50 each from March December 31. If the company uses the weighted average inventory costing method, calculate the amount of Cost of Goods Sold on the income statemen ending December 31. (Assume the company uses the perpetual inventory system. Round any intermediate calculations two decimal places, and your final the nearest dollar.) O A. $4,250 O B. $1,800 OC. $6,050 OD. $3,956