please help

Given the following data, calculate the cost of goods sold using the average - cost method. Round average cost per unit calculations to two decimal places. Round final answer to the nearest dollar. Date 1/1 5/10 10/9 12/31 Item Beginning inventory Purchase of inventory Purchase of inventory Ending inventory Unit 70 units at $30 per unit 20 units at $30 per unit 20 units at $22 per unit 28 units O A. $3,141 OB. $2,798 O C. $2,341 OD. $9,195