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: a 900 units Ob 165 units Oc. None of the given answers e d. 94 units e. 3300 units