The statement that technical stages include the Managing a Stage Boundary process activities is false.
Technical stages refer specifically to the application of skills and techniques during the project delivery process. The Managing a Stage Boundary process is concerned with the end of a management stage and planning the next stage, not directly with technical delivery. References: PRINCE2 Foundation manual, PRINCE2 official resources

One of the advantages of dividing the project into stages, as advocated by PRINCE2, is that detailed plans can be prepared closer to the time events will take place. This allows planning to be based on more accurate, up-to-date information, improving the relevance and accuracy of the plans. This approach also allows for better response to changes and risks, as planning for later stages can adjust based on the outcomes and learnings from earlier stages.References: PRINCE2 Foundation Manual

Both statements about stakeholders are true in the context of PRINCE2. A stakeholder in a project includes anyone who thinks they will be affected by the project, which can include both supporters and those who may oppose the project. Additionally, stakeholders can be both internal and external to the organization that is undertaking the project. References: PRINCE2 Foundation official documentation and study materials.

The purpose of the Managing Product Delivery process is to ensure that there is a controlled link between the Project Manager and the Team Managers. This link facilitates the proper execution and delivery of Work Packages, ensuring that work is carried out effectively, monitored, and controlled. References: PRINCE2 Foundation official documentation and study materials.

A minimum requirement for applying the quality theme in PRINCE2 is keeping a record of all planned quality management activities. This requirement ensures that there is clear documentation of what quality checks will occur, who will perform them, and how they will be executed, which is fundamental for maintaining control over quality assurance throughout the project. References: PRINCE2 Foundation Handbook, Quality Theme section.