4. Problems with Profitability Index. The Matterhorn Corporation is trying to choose between the following two mutually exclusive design projects: Year Cash Flow (I) Cash Flow (II) 0 -$65,000 -$24.000 1 24,000 8,000 2 29,000 14,500. 3 36,000 12,800 a. if the required return is 11 percent and the company applies the profitability index decision rules, which project should the firm accept? b. If the company applies the NPV decision rule, which project should it take? c. Explain why your answers in (a) and (h) are different