Which of the following statements are true regarding access rights?

The statement regarding the access rights of a system architect reflects the capabilities and limitations associated with that role within the Pega platform. A system architect typically possesses a comprehensive skill set that includes the ability to configure and manage various aspects of an application, including Application Overlays.

In this context, the ability to delete all Application Overlays is aligned with the permissions that system architects have, which allows for significant control over the environment they are managing. They are tasked with technical implementations and overseeing application configurations, which often include managing and manipulating overlays, thus supporting the notion that they can indeed delete them.

Understanding this role and its permissions is crucial for ensuring that projects are managed effectively and aligns with the overall governance and maintainability of the applications built in Pega. Other roles like a Decision Architect or Tester have more specialized tasks and more limited capabilities in terms of the overall application management, emphasizing the different scopes of responsibilities each role holds.