Grant Investment Co. is expecting its apartment complex project to generate the following cash flows: (a) Determine the payback period for the complex project. (b) Determine the net present value using a cost of capital of 12 percent. (c) Determine the net present value at a cost of capital of 16 percent, and compute the internal rate of return. (d) At a 12 percent cost of capital, should the project be accepted? At a 16 percent cost of capital, should the project be accepted? Explain