This information applies to this and the next several questions: Dan ran an NPV spreadsheet calculation on his project and determined that the cumulative NPV @5 years, using the corporate requirement for a 15% return, is +$40K. Dan also wants to run an internal rate of retum calculation on his project To start his search for the actual IRR, Dan should start by doing what to the return rate that he first used in the calculation? OA. Lowering it OB. Keeping it the same. OC Raising it OD. This isn't how you approach the problem. Describe how you know when you have found the actual IRR rate. (What result tells you that you found it?) For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).