Greener Hoverboards uses a common part in the manufacture of several of its hoverboards. The cost of producing 45,000 parts is $138,000, which includes fixed costs of $73,000 and variable costs of $65,000. The company can buy the part from an outside supplier for $3.70 per unit, and avoid 30% of the fixed costs. If Greener Hoverboards makes the part, how much will its operating income be? O A. $94,900 less than if the company bought the part OB. $79,600 less than if the company bought the part OC. $79,600 greater than if the company bought the part OD. $94,900 greater than if the company bought the part