Potable water is in short supply in many developing countries. To address this need, two mutually exclusive water purification systems are being considered for implementation in a developing country. Doing nothing is not an option. The MARR is 8% per year. Calculate the discounted payback period for each of the two systems. Which system should be selected based on the payback period? The discounted payback period for System 1 is. (Round to one decimal place.) The discounted payback period for System 2 is. (Round to one decimal place.) Which system should be selected? Choose the correct answer below. System 1 System 2