After which of the following documents is signed off by stakeholders can a project begin?

Project stakeholder requirements are gathered and documented during the planning phase and define what the project needs to achieve, but their sign-off does not authorize the project's start.

The project charter is the foundational document that formally authorizes the existence of a project, provides the project manager with the authority to apply organizational resources, and links the project to the strategic objectives. Its sign-off by key stakeholders signifies official project approval and the formal start of the project.

The project scope statement defines the project's boundaries, deliverables, and acceptance criteria and is developed during the planning phase; its sign-off is for scope approval, not project authorization.

The project schedule details the timeline for project activities and is created during the planning phase; its approval signals agreement on the timeline, not the formal start of the project itself.