Elise Corporation has the following sales mix for its three products: A, 25%; B, 30%; and C, 45%. Fixed costs total $540,000 and the weighted-average contribution margin is $100. How many units of product A must be sold to break-even? Multiple Choice O 1,350. O 5,400. O 21,600. O Cannot be determined based on the information presented. O None of the answers is correct