Question 2. (20 points): Suppose that, after applying the simplex method to solve a maximization LP problem, you obtain the tableau below, where a13,a1a, a23, a24,a33, a34, b, b2, b3, c3, ca, d are real numbers. X1 X2 X3 X4 X5|RHS | Basic var 0 0 0 a23 a24 1b2 b2 max z; x20 Suppose bi 2 0, b2 2 0 and b 2 0. For each of the scenarios below, describe the next action to take in applying the simplex method: 1. C3 0, a13 0, a13 0, c4>0. 4. c3 > 0, c4 0. 5. c3 > 0, C4 0, a140, a24 >0 and a34