Consider the graphical solution to the dessert problem. Now imagine that another constraint—any constraint—is added. Which of the following three things are possible: (1) feasible region shrinks; (2)...

Consider the graphical solution to the dessert problem. Now imagine that another constraint—any constraint—is added. Which of the following three things are possible: (1) feasible region shrinks; (2) feasible region stays the same; (3) feasible region expands? Which of the following three things are possible: (1) optimal value in target cell decreases; (2) optimal value in target cell stays the same; (3) optimal value in target cell increases? Explain your answers. Do they hold just for this particular model, or do they hold in general?