Which of the following statements is INCORRECT?

a. An NPV profile graph shows how a projects NPV varies as the cost of capital changes.

b. Both NPV and IRR will not lead to conflicting decisions as long as the WACC is greater than the crossover rate and the projects are mutually exclusive.

c. IRR is the interest rate that forces the present value of the cash inflows equal cost, and the NPV=0.

d. We must know the exact cost of capital to draw a particular projects NPV profile.

Which of the following statements is CORRECT?

a. If a project has more than one IRR, the highest IRR is the IRR of the project.

b. MIRR is more superior than IRR.

c. The assumption of the IRR method is superior to the assumption of the NPV method.

d. One of the reasons why NPV profile crossover is because of the project size or scale differences.

e. b and d