Norman Corporation manufactures three products. The corporation has had a limited labor hours available. The following per unit data relates to the three products of the corporation: Assume that Norman only has 1,800 labor hours available next month. Also assume that Norman can only sell 800 units of each product in a given month. What is the maximum amount of contribution margin that Norman can generate next month given its limited labor hours? $17,200$17,800$12,000$19,600