Which of the following statements related to the internal rate of return (IRR) are correct? I. The IRR is the discount rate at which an investment's NPV equals zero. II. An investment should be undertaken if the discount rate exceeds the IRR. III. In most cases, the IRR yields the same investment recommendation as the NPV. IV. The IRR is the best tool available for deciding between mutually exclusive investments. Multiple Choice I and II only I and Ill only Il and Ill only I, II, and IV only I, II, III, and IV None of the options are correct