How does project lessons learned documentation relate to knowledge management?

Group of answer choices:

1.Lessons learned documentation undermines knowledge management and this ensures each new project tests their skills.

2.Lessons learned documentation facilitates a healthy tendency to redo everything again on subsequent projects.

3.Lessons learned documentation insulates projects, creating multiple silos that facilitate knowledge sharing.

4.Lessons learned documentation ensures the knowledge created by the project can be used on subsequent projects.