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Two models of a product-Regular (x) and Deluxe (Y)-are produced by a company. A linear programming model is used to determine the production schedule. The formulation is as follows: Maximize profit-50X-60 Y labor hours) BX 10Y 800 X+Y*120 4X5Y 500 (total units demanded) traw materials) all variables 0 The total profit corresponding to the optimal solution is Select one: O a. 5000 O b. 4000 c. 7000 O d. 2000 e. None of these D