Voltaic Electronics uses a standard part in the manufacture of different types of radios. The total cost of producing 30,000 parts is $100,000, which includes fixed costs of $40,000 and variable costs of $60,000. The company can buy the part from an outside supplier for $2 per unit and avoid 30% of the fixed costs. Assume that the company can use the freed manufacturing space to make another product that can earn a profit of $16,000. If Voltaic outsources, what will be the effect on operating income? OA. increase of $28,000 B. decrease of $12,000 C. decrease of $28,000 OD. increase of $16,000 +