For the Pittsburgh Development Corporation problem in Section $4\mathrm{.}3,$ the decision alterna$-$ tive to build the large condominium complex was found to be optimal using the expected value approach. In Section $4\mathrm{.}4$ we conducted a sensitivity analysis for the payoffs associ$-$ ated with this decision alternative. We found that the large complex remained optimal as long as the payoff for the strong demand was greater than or equal to $$17\mathrm{.}5$ million and as long as the payoff for the weak demand was greater than or equal to $$19$ million.a$.$ Consider the medium complex decision. How much could the payoff under strong demand increase and still keep decision alternative d$3$ the optimal solution?b$.$ Consider the small complex decision. How much could the payoff under strong demand increase and still keep decision alternative d$3$ the optimal solution?