Marvelous manufacturing (mm) generated the following information for its capital budgeting manager: capital structure project cost irr type of capital proportion w $65,000 15% debt 30% x 70,000 13 common equity 70 y 75,000 12 z 70,000 11 mm's weighted average cost of capital (wacc) is 12 percent if the firm does not have to issue new common equity; if new common equity is needed, its wacc is 16 percent. if mm expects to generate $70,000 in retained earnings this year, which project(s) should be purchased? assume that the projects are independent and indivisible. only project w should be purchased. all of the projects should be purchased. projects w and x should be purchased. none of the projects should be purchased. projects w, x, and y should be purchased.