Old Country Inc. has the following three projects available: Cash Flow Cash Flow Year Cash Flow F (Project C) (Project A) (Project B) -$50,000 -$70,000 -$100,000 20,000 15,000 20,000 - 28,000 19,000 35,000 10,000 35,000 30,000 == 5,000 25,000 50,000 a. Suppose Old Country imposes a payback cutoff of three years for its projects, which project(s) should it choose? Explain. b. Suppose Old Country's cost of capital is 10%, what is the NPV of each project? Which project(s) should it choose? C. Suppose these projects are mutually exclusive, and the cost of capital is 10%, which project(s) should it choose? Explain. d. Suppose Old Country only has $120,000 to invest, which is enough for taking projects A and B but not enough for taking all the projects. The cost of capital is 10%. What should Old Country do in order to maximize the firm value? Which project(s) should it choose? Explain