Harvey Automobiles uses a standard part in the manufacture of several of its trucks. The cost of producing 90,000 parts is $140,000, which includes fixed costs of $60,000 and variable costs of $80,000. The company can buy the part from an outside supplier for $3.10 per unit, and avoid 30% of the fixed costs. If Harvey Automobiles makes the part, how much will its operating income be? O A $181,000 less than if the company bought the part OB. $237,000 greater than if the company bought the part O C. $181,000 greater than if the company bought the part OD. $237,000 less than if the company bought the part