Mazoon Company sells yachts. During the current year, 100 yachts were sold resulting in $320,000 of sales revenue, $120,000 of variable costs, and $180,000 of fixed costs. The number of yachts that must be sold to achieve $150,000 of operating income is: O a. 165 units O b. None of the given answers O c. 3300 units O d. 900 units O e. 94 units