Which of the following communication methods would be the most appropriate to finalize the handoff...

A closure meeting involving the project team and stakeholders is the most appropriate method to finalize the handoff of deliverables. This meeting ensures that all parties acknowledge the completion of project objectives and agree on the transition of deliverables.

Per the CompTIA Project+ PK0-005 exam objectives, under Domain 2.5: Explain the importance of activities performed during the closing phase, conducting a closure meeting is essential for formal acceptance and documentation of project completion.