Option 4: Variable owner

Variable owner is not a default policy typically present at the application level in most software development and deployment contexts. The other options—Application owner (Option 1), Developers (Option 2), and Pipeline Administrators (Option 3)—are more commonly recognized roles or policies associated with application development, deployment, and management.

Application owner is typically responsible for the overall ownership and management of the application.

Developers are the individuals or teams responsible for writing code and developing the application.

Pipeline Administrators oversee the continuous integration and continuous deployment (CI/CD) pipelines and the associated processes for deploying applications.

Variable owner, on the other hand, is not a standard or default policy, and its presence would depend on specific organizational or project requirements related to variable management, configuration, or security.