For the following True/False questions, choose answer 'a' if the statement is true, and choose answer 'b' if the statement is false. 17. An NPV profile can show whether or not a project has multiple IRRs. 18. An NPV profile cannot determine a project's IRR by itself. You must also know the company's WACC. 19. An NPV profile of projects A and B, combined with the company's WACC, can be used to identify which projects should be accepted if the projects are independent. 20. If projects A and B are mutually exclusive, then it might be optimal to choose the project with the lower IRR. 21. The IRR and NPV decision rules will always give the same accept/reject decision for mutually exclusive projects. 22. If a project has multiple IRRs, then the company should choose a cost of capital that makes the project have a positive NPV.