Which of the following actions can be used to ensure the quality of project deliverables?

Analyzing performance information is a core quality control and quality assurance activity that involves reviewing metrics, test results, and inspection data to verify that project deliverables conform to defined quality standards. This process identifies deviations from the quality baseline and triggers corrective actions when needed. It directly supports quality assurance by providing objective evidence that deliverables meet acceptance criteria.

Requiring all vendors to be ISO certified is an extreme and often impractical procurement constraint that is not a standard quality assurance technique for project deliverables.

Updating the risk register is a risk management activity used to track and respond to project risks, not a mechanism for verifying or ensuring the quality of deliverables.

A statement of work defines scope and requirements for procurement but does not itself constitute an action that ensures the quality of deliverables produced during the project.