Explanation
According to the PMBOK Guide 7th Edition, one of the principles of project management is to "enable knowledge sharing". This means that the project manager should facilitate the creation, collection, distribution, and use of project knowledge throughout the project life cycle and beyond. The project manager should also ensure that knowledge transfer activities are executed as planned, such as documenting lessons learned, updating organizational process assets, and transferring deliverables to the customer or sponsor. The PMBOK Guide 7th Edition also states that "closing is the process of finalizing all activities across all aspects of the project". The project manager should prioritize the activities that ensure the completion and acceptance of the project deliverables, the satisfaction of the project stakeholders, and the learning and improvement of the project team and the organization. Therefore, the best answer is D. References: PMBOK Guide 7th Edition, pages 11, 12, 55, 56, 57.