Choosing between two projects with acceptable payback periods. Shell Car aing Gear, Inc., is considering two mutually exclusive projects. Each requires an initial investment of $180,000. John Shell sident of the company, has set a maximum payback period of 4 years. The after-tax cash inflows associated with each project are shown in the following table: a. Determine the payback period of each project. b. Because they are mutually exclusive, Shell must choose one. Which should the company invest in? a. The payback period of project A is years. (Round to two decimal places.) Data table (Click on the icon here 8 in order to copy the contents of the data table below into a spreadsheet.)