Benace Parts and Supply makes a variety of car parts. The company produces 6,000 A90 parts each year. Each A90 sells for $12 and has a contribution margin of $6. Currently, $16,100 of fixed manufacturing overhead is allocated to the A90 product line. If Benace Parts and Supply discontinues the A90 product line, $7,100 of fixed manufacturing overhead costs would be avoided. What would be the impact on total operating income if the A90 product line were to be discontinued? O A. Increase in total operating income of $28,900 O B. Increase in total operating income of $27,000 O C. Decrease in total operating income of $27,000 OD. Decrease in total operating income of $28,900