What is the minimum number of management stages required by PRINCE2?

What should be recorded in a quality register?
1. Activities to ensure the products are fit for purpose
2. Identified threats and opportunities
3. Problems and concerns to be managed informally
4. Roles responsible for reviewing the project's products

Which is a minimum requirement for applying the risk theme?

Who should use the information in a Lessons Report to refine, change and improve the standards within a quality management system?

What process aims to ensure accurate progress information is provided to the Project Manager?