Which of the following statements are correct? Please choose all correct answers.

1. NPV method should be used as the primary decision rule.

2) IRR method has no indication about the change in value.

3) Modified IRR method can be used in all the scenarios where IRR is not a good decision rule.

4) One should only use NPV method for decision making.

5) One should accept the project if the required return is higher than the IRR.