During the review of a project's list of deliverables, one of the stakeholders expressed concern that one of the requirements will not be addressed. What should the project manager do?

While discussing additional requirements may be necessary in some contexts, this option does not address the immediate concern about the specific requirement that may not be met. It could lead to confusion rather than resolving the existing issue regarding the current list of deliverables.

Improving acceptance criteria is important for ensuring that requirements are met satisfactorily; however, this approach does not directly tackle the stakeholder's concern about unaddressed requirements. Focusing on acceptance criteria might divert attention from confirming whether the original requirement is included in the project scope.

Checking the approved list is a useful step, but it lacks the collaborative aspect needed to address the stakeholder's concerns effectively. This action alone may not clarify the specific issue raised, nor does it involve the stakeholder in understanding the current requirements status.