4. Comparison of Alternatives (4-points). Pure Spring Bottled Water Company can lease a manganese dioxide filtration system to remove small amounts of hydrogen sulfide from its well water prior to the addition of chlorine and fluoride. The lease cost for this equipment is $75,000 annually for the first 2-years, and $100,000 in years 3, 4, and 5. The lease payments are made at the end of each contract year and include manufacturer- supplied maintenance and operating support for the system, as well as removal (scrapping) of the system at the end of the 5-year lease. As the alternative, Pure Spring can purchase and install the filtration system for $125,000, operate and maintain the system for $50,000 per year, and receive $5,000 salvage for the system at the end of its life. At an interest rate of 6% compounded annually, does leasing the equipment save money? b. Explain why you selected the analysis method you used as the basis from which to make your recommendation