You are investigating two mutually exclusive investment projects for the firm, project A and project B. After your analysis you find that the IRRA>IRRB, but that the NPVAB. Given this information you should:
Choose neither project because of conflicting results
Choose both projects as the results indicate either will work
Choose B because IRR results are not conclusive with mutually exclusive projects
Choose A because NPV results are not conclusive with mutually exclusive projects
See if you can get a different job because you have no idea what you are doing