The cash flow for projects A.B,C are given below: Year Project A Project B Project C 0 -100 -100 -100 1 0 100 0 2 200 0 0 3 -100 100 300 Questions: a) Calculate the payback period and net present value for each project (assuming a 10% discount rate) b) If A and B are mutually exclusive and C is independent, which project, or combination of projects, is preferred using (1) the payback method or (2) the net present value method? What do the results tell you about the value-additivity properties of the payback method?