D Question 17 5 pts A linear program has been solved and sensitivity analysis has been performed, The ranges for the objective function coefficients have been found. For the profit on X, the upper bound is 80, the lower bound is 60, and the current value is 75. Which of the following must be true if the profit on this variable is lowered to 70 and the optimal solution is found? O A new comer point will become optimal A redundant constraint exists in the problem The range of feasibility has been exceeded O The range of optimality has been exceeded The optimal solution for all of the decision variables will remain the same