A supermarket can purchase an automated checkout machine for $100,000 (to be paid in year 0) that has an estimated life of 5 years. Servicing and maintenance over that period will begin at $2,500 per annum ( at the end of year 1) and increase at a 10% rate every year. If the checkout machine is purchased, the supermarket will not be required to hire one additional checkout operator. The checkout operator costs $28,000 per year (assume this is also at the end of each year beginning with year 1), and this amount is expected to increase at 5% annually. If the supermarkets cost of capital is 10%, which alternative should be selected. Assume all annual cashflows occur at the end of each year