$15.$ Aitken Corp currently makes $20,000$ subcomponents a year in one of its factories. The unit

costs to produce are:

$[$Note that the Total unit cost $=$ $$50]$ An outside supplier has offered to provide Aitken Corp

with the $20,000$ subcomponents. What is the maximum price Aitken Corp should pay the outside

supplier?

A$)$ $$40$

B$)$ $$45$

C$)$ $$50$

D$)$ $$55$