To ensure all deliverables meet project acceptance criteria, what should the project manager do?

The correct answer is to incorporate stakeholder expectations and needs when defining project acceptance criteria. This is because acceptance criteria are the formal conditions required for deliverables to be accepted by stakeholders. By involving stakeholders in their definition, the project manager ensures that the criteria accurately reflect what is needed and expected, thereby increasing the likelihood of acceptance. Creating an SOW and keeping it unchanged is incorrect because the SOW defines the scope, but acceptance criteria are more specific to deliverables and can evolve. Holding regular meetings to confirm satisfaction is good practice but doesn't proactively define the criteria for acceptance. Discussing with only the sponsor is insufficient; all relevant stakeholders' needs must be considered for comprehensive acceptance criteria.