The accounting records for Grant Manufacturing Company included the following cost information relating to its first year of operations: Assume the company produced 10,000 units of inventory and sold 6.400 of these units during the year for $104,960, Under variable costing. What is the contribution margin for the year? (gnore selling and administrative expenses.) Assume the company produced 10,000 units of inventory and sold 6,400 of these units during the year for $104,960. Under variable costing, what is th contribution margin for the year? (gnore selling and administrative expenses.) Mulsiple Choice $53,920 $8,000 $34,000 None of these answers are correct