The following data pertain to costs at Upside Company: TotalfixedcostsTotalvariablecostsProductionlevel$300,000$76,00022,000units The variable cost per unit is A. $13.64 B. $3.45 C. $17.09 D. $10.18 Trey's Trucks uses a standard part in the manufacture of several of its trucks. The cost of producing 40,000 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 $3.00 per unit and avoid 30% of the fixed costs. Assume that factory space freed up by purchasing the part from an outside source can be used to manufacture another product that can be sold for $17,000 profit. If the company makes the part, what will its operating income be? A. $29,000 greater than if the company bought the part B. $29,000 less than if the company bought the part C. $159,000 greater than if the company bought the part D. $73,000 greater than if the company bought the part