The Pitch sells 1 select style soccer ball for every 3 classic style balls. The select and classic style balls, respectively, sell for \($40\) and \($20\) and have unit variable costs of \($20\) and \($10\). Assuming a constant sales

* mix and total fixed costs for the company of \($120,000\), the break-even unit sales volume is:

a. 7,200

b. 384,000

c. 9,600

d. 9,023