QRP Corporation has the following risk-adjusted WACC discount rates: 7% for below-average risk projects, 9% for average-risk projects, and 11% for above-average risk projects. Which of the following independent projects should be accepted by QPR, assuming that the company uses the NPV method for project selection? Select one: a. Project 1 with an IRR of 6.5% at a below-average risk. b. Project 2 with an IRR of 11.5% at an above-average risk c. Project 3 with an IRR of 8.5% at an average risk. d. All of the projects ought to be accepted as they all have positive NPVs. e. Without information detailing each projects' NPV, we cannot determine which one or ones ought to be accepted