The Combination of Decision Variables Optimizing a Linear Programming Problem,occurs

Multiple Choice

The combination of decision variables optimizing a linear programming problem,occurs at:

A) a point where the objective function contour touches the feasible region.
B) any point within the feasible region.
C) any point outside the feasible region.
D) any point where the constraint functions intersects the objective function.
E) a point which will satisfy at least one of the constraints.