Question 1 (10 points)Explain how the following conditions can be represented as linear constraints using binaryvariables.a. Either x1 x2 ≤ 3 or 3x1 4x2 ≥ 10 (3 points)b. Variable x2 can assume values 0, 4, 7, 10, and 12 only (4 points)c. At least 2 out of the following 5 constraints must be satisfied: (3 points)x1 x2 ≤ 7x1 - x2 ≥ 32x1 3x2 ≤ 204x1 - 3x2 ≥ 10x2 ≤ 6x1, x2 ≥ 0