o is 10 units per hour and the Product Y is 45 units per hour. The machine's capacity is 2,300o hours a year. The expected demand for Product X is 18,000 units and for Product Y is 67.500 units. Selling prices and variable costs are given below. (Questions 13-14) Keegan owns a machine that can make two different products. The Product $ 4.50 S 1.50 ProductY $ 2.00 $1.20 Selling Price per unit Variable Costs per unit 13. What is the most profitable sales mix? a. Make 18,000 units of Product X &13,500 units of Product Y b. Make zero units of Product X &103,500 units of Product Y c. Make 13,000 units of Product X & 67,500 units of Product Y d. Make 3,000 units of Product X & 67,500 units of Product Y e. None of the above 4. What is the contribution margin at the most profitable sales mix? a. $70,800 b. 82,800 c. 75,000 d. 78,000 e. None of the above