Which of the following is not true regarding the Payback Period measuring model? The payback period involves only gross cash flows and not discounted cash flows. You accept the investment if its payback period is less than a predetermined number of years. The payback period is not one of the top 2 ways for measuring returns The payback period is a more simplistic model than calculating the NPV and IRR of a project. O You accept the investment if its payback period is greater than the predetermined number of years