3. Your firm is considering two projects to invest with the following cash flows: (16 points) a. If the appropriate discount rate is 12%, rank the two projects using NPV. b. Which project is preferred if you rank by IRR? | c. Calculate the crossover rate, namely, the discount rate r at which the NPVs of both projects are equal. d. Create and graph NPV profile including the crossover point for Project A and Project B respectively but both graphs should be on the same chart. Show and label the crossover point on the chart. e. Should you use NPV or IRR to choose between the two projects? Explain why? f. Discuss at what discount rates (or range of discount rates) you would take project A and at what discount rates you should take project B. When will you take neither project A or project B