Which of the following statements is generally true regarding the optimal solution of a linear programming?

Group of answer choices

The optimal solution of a linear programming can be found outside of the feasible region.

The optimal solution of a linear programming can be found on the intersection point of x-axis and objective function.

The optimal solution of a linear programming can be found within a feasible region of the problem.

The optimal solution of a linear programming can be found at extreme points of the feasible region.