Please show your work, not just do it in Excel

Consider the following four alternatives and select the preferred alternative. The study period is 4 years and the MARR = 12% per year. Do Nothing" is not an option. A B D Capital Investment $15,000 $16,000 $13,000 $18,000 Annual Revenues 4000 6000 5540 6100 Annual Costs 250 500 400 350 Salvage value 5000 6150 28000 3. Select the best option using the Payback method. You must compute the payback period for each option