Project has a net present value of $1500 a payback period of 2 years and an internal rate of return of 12 %. Project B has a net present value of $1800, a payback period of 4 years, and an internal rate of return of 10%. Project C has a net present value of $1750, a payback period of 3 years, and an internal rate of return of 11%. If the projects are mutually exclusive, which project should be undertaken?