Two models of a product Regular (X) and Deluxe (Y) formulation is as follows: are produced by a company. A linear programming model is used to determine the production schedule. The Maximize profit=50X + 60Y Subject to: 8X + 10Y - 800 X+Y 120 4X +10Y - 500 X,Y 0 (labor hours) (total units demanded) (raw materials) The optimal solution is X = 100, Y = 0. Which of these constraints is redundant? the first constraint the second constraint the third constraint O All of these O None of these