Mrs. Wen has an option of investing in either a piggery or a broiler enterprise. She has estimated the cash flows over the 7-year life of the two projects. During the seventh year the piggery and broiler can be sold for N$20 500 and N$5 500 to a scrap dealer, respectively. The cash flows can be summarised as follows: Piggery Broiler 100 000 35 000 Initial investment Year 1 2 3 4 5 12,000 13,000 16,900 17,500 15,200 18,600 18,100 3,500 4,500 6,700 7,800 7,900 8,500 8,900 7 Additional information: The cost of capital (discount rate) is estimated to be 12%. Determine: a. the Net Present Value of both investments b. the payback period of both investments c. In which enterprise should Mrs. Wen invest? Explain your answer. NOTE: please show ALL detailed calculations as marks will be allocated accordingly