Explanation
= According to the PMBOK Guide, project closure is the process of finalizing all activities across all of the project management process groups to formally complete the project or phase. Project closure involves verifying that the project deliverables meet the acceptance criteria, obtaining formal acceptance from the customer or sponsor, transferring the ownership and responsibility of the deliverables, updating the organizational process assets, archiving the project documents, releasing the project resources, and conducting a lessons learned session. In this scenario, the project manager should hold a meeting with the project team, project sponsor, and the client to agree to the further work required to close the project and add to lessons learned, as this can help to resolve the dispute over the code inspections, ensure the satisfaction and acceptance ofthe client, document the project performance and outcomes, and identify the best practices and improvement opportunities for future projects. Closing the project and handing over the deliverables to the client, holding a lessons learned workshop without the client, or seeking expert legal advice are not the best options, as they may not address the client's concerns, damage the relationship with the client, or escalate the conflict unnecessarily. References: = PMBOK Guide, 7th edition, pages 284-285, 290-291.