Which of the following types of closure occurs when a project has been delivered to the satisfaction of all parties?

A project post mortem is an activity performed after a project is completed or canceled to review what went well and what didn't, not the type of closure itself.

Project cancellation refers to the premature termination of a project before its objectives are met, usually due to unforeseen circumstances or changing priorities, not successful delivery.

Project phase closure is the formal completion of a specific stage within a larger project, not the entire project's successful delivery.

Project completion specifically refers to the formal closure of a project when all defined objectives have been achieved, the deliverables have been accepted, and all involved parties are satisfied with the outcome. This signifies that the project has successfully met its goals and can be formally closed out.