Considering IRR and MIRR, which of the following statements is/are correct?

1. MIRR considers all the cash flows and time value of money.

2. If Project As IRR exceeds Project B IRR, then A must have the higher NPV.

3. Positive MIRR always leads to positive NPV.

4. Conventional (also known as Normal) cash flows will result in multiple IRRs.

5. All of the above, except d, are correct statements. (I know this answer is wrong, I got marked off).