Which one of the following statements is correct?

The subjective approach assesses the risks of each project and assigns an adjustment factor that is unique just for that project.

Overall, a firm makes better decisions when it uses the subjective approach than when it uses its WACC as the discount rate for all projects.

Firms will correctly accept or reject every project if they adopt the subjective approach.

Mandatory projects should only be accepted if they produce a positive NPV when the firm's WACC is used as the discount rate.

The pure play approach should only be used with low-risk projects.