Trey's Trucks uses a standard part in the manufacture of several of its trucks. The cost of producing 60,000 parts is $140,000, which includes fixed costs of $80,000 and variable costs of $60,000. The company can buy the part from an outside supplier for $3.10 per unit and avoid 30% of the fixed costs. of the company makes the part, low much will its operating income be? t A $130,000 greater than if the company bought the part O B. $102,000 less than if the company bought the part OC. $130.000 less than if the company bought the part OD. $102,000 greater than it the company bought the part SC