Which of the following statements is correct? assume that the project being considered has normal cash flows, with one outflow followed by a series of inflows. a. one drawback of the regular payback for evaluating projects is that this method does not properly account for the time value of money. b. if a project's payback is positive, then the project should be rejected because it must have a negative npv. c. the regular payback ignores cash flows beyond the payback period, but the discounted payback method overcomes this problem. d. if a company uses the same payback requirement to evaluate all projects, say it requires a payback of 4 years or less, then the company will tend to reject projects with relatively short lives and accept long-lived projects, and this will cause its risk to increase over time. e. the longer a project's payback period, the more desirable the project is normally considered to be by this criterion.