An optimal solution is ________.

A) also known as the constraint function
B) the quantity that we seek to minimize or maximize
C) the limitation or requirement that decision variables must satisfy
D) any set of decision variable values that maximizes or minimizes the objective function

An optimal solution is any set of decision variable values that maximizes or minimizes the objective function. Option A is incorrect as the constraint function is a set of equations or inequalities that limit the values that decision variables can take. Option B is incorrect as the objective function is the function that is being optimized. Option C is incorrect as constraints are limitations or rules that must be followed by decision variables in order to obtain an optimal solution.