XYZ produces and sells two products, A and B. A has a contribution margin of $4 per unit while B has a contribution margin of $6 per unit. For every unit of A that is sold, three units of B are sold. XYZ has fixed costs of $825,000 per year. How many units of each product must be sold for XYZ to earn an operating profit of $220,000? Select one: o a. Product A: 112,500; Product B: 37,500. b. Product A: 37,500; Product B: 112,500. c. Product A: 142,500; Product B: 47,500. d. Product A: 47,500; Product B: 142,500