5. Which of the following statements is true concerning the relationships among NPV, IRR i. For a single project, if the NPV is positive, then the IRR will be greater than the cost of capital. . NPV and IRR always give the same ranking decision since they assume the same reinvestment rate. iii. For a single project, if the NPV is positive, then the PI may or may not be greater than one, since PI uses a different reinvestment rate assumption than NPV. a. Only statement is correct. b. Only statement ii is correct. c. Statements and ii are correct. d. Statements i and iii are correct