The firms two best selling products sell at the following profit margin: $20 for product 1 and $40 for product 2. The marketing department recommends that at least 100 of each type of product be produced per day. Product 1 requires 5 labor-hours in the fabrication department and 2 labor-hour in the assembly department. Product 2 requires 5 labor-hours in the fabrication department and 3 labor-hours in the assembly department. There are currently 150 workers in the fabrication department and 75 workers in the assembly department each shift. There are three 8-hour shifts per day (overtime is not permitted).Formulate this information as a profit-maximizing linear programming problem with the following decision variables:X1 = the number of units of product 1 producedX2 = the number of units of product 2 producedThe assembly constraint should be expressed as:a. X1 + X2 75b. X1 + X2 1800c. 2X1 + 3X2 75d. 2X1 + 3X2 1800e. 3X1 + 2X2 1800