3. Fuji Software Inc. has the following mutually exclusive projects: (a) What is the payback period for project A and B? (5%) (b) According to the method of payback period, which project do you prefer? (5%) (c) Use profitability Index (PI) to evaluate these two projects in the financial cost of 12%. (5%) (d) Which project will you prefer in accordance of PI of the projects? (5%)