Required: Calculate the average rate of return for each proposal. (4 marks) ii. Determine the cash payback period for each proposal. (3 marks) Based on the required rate of return of 5 percent, determine the net present value for each proposal. (4 marks) iv. Refer to your answer in (i) to (iii) above, for each evaluation method, choose which project you will decide to invest? Explain your answer. (4 marks)