Identify at least three things that you need to do to properly close down this project

You have reached the end of the project. The relocation from DC to NY has been done. The Project Sponsor wants to have a big celebration for you and your team, but you tell him that the project is not yet complete. Identify at least three things that you need to do to properly close down this project. Explain the problems that will arise if you don’t close out this project. The Project Sponsor is still not convinced and will only allow you to do one of the three things you presented to close out the project. Which one will you do? Why?