121. If there are more than one optimal solutions for the decision variables, the solution is ___A. InfeasibleB. UnboundedC. AlternativeD. None of these AnswerC. Alternative 122. Dual of the dual s a ___. .A. DualB. PrimalC. AlternativeD. None of these AnswerB. Primal 123. The quantitative approach to decision analysis is a ___. .A. Logical approachB….