Greenpark Skateboards uses a standard part in the manufacture of several of its skateboards. The cost of producing​ 40,000 parts is​ $143,000, which includes fixed costs of​ $69,000 and variable costs of​ $74,000. By outsourcing the​ part, the company can avoid​ 30% of the fixed costs.

If the company buys the​ part, what is the most it can spend per unit so that operating income equals the operating income from making the​ part? (Round the final answer to the nearest​ cent.)

A. $3.58
B. $2.37
C. $0.42
D. ​$4.78