Which of the following statements related to the net present value (NPV) and the internal rate of return (IRR) are correct? 1. If a project's NPV is equal to zero, the project's internal rate of return is exactly equal to the discount rate II. The NPV is the best method of analyzing mutually exclusive projects. III. The IRR is the discount rate that makes the estimated NPV of an investment equal to zero. O I, II, and 111 I and III only Oll only OI only land Il only