For two mutually projects, we assume their NPV profiles cross and the crossover rate is 9.3%. We assume the require rate of return is r. We use both NPV and IRR methods to analyze the two projects. Which of the following statements is most correct?

a) If r > 8.3%, NPV and IRR methods always obtain similar decisions.

b) If r > 9.3%, NPV and IRR methods obtain conflicting decisions.

c) If r < 8.3%, NPV and IRR methods might obtain conflicting decisions.

d) None of the above statement is correct.