Could you help me in solving this question, Doctor, as soon as possible, please, and thank you.

Question Mazoon Company sells yachts. During the current year, 100 yachts were sold resulting in 18 $420,000 of sales revenue, $120,000 of variable costs, and $100,000 of fixed costs. The Not yet number of yachts that must be sold to achieve $140,000 of operating income is: answered Marked out of O a. None of the given answers 1.00 O b. 47 units Flag O c. 80 units question O d. 2400 units O e. 90 units