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 $20\%$ 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?

A$.$ decrease of $$8,000$

B$.$ decrease of $$24,000$

C$.$ increase of $$16,000$

D$.$ increase of $$24,000$