SawTooth Company uses a standard part in the manufacture of several of its saws. The cost of producing 70,000 parts is $130,000, which includes fixed costs of $80,000 and variable costs of $50,000. The company can buy the part from an outside supplier for $3.10 per unit and avoid 30% of the fixed costs. If the company makes the part, how much will its operating income be? O A. $143,000 less than if the company bought the part B. $161,000 less than if the company bought the part O c. $161,000 greater than if the company bought the part D. $143,000 greater than if the company bought the part