Why did Debbie's apex tests run even though she selected No Test Run?

The correct answer is based on the functionality of the system where the checkbox for "Run all local tests" being enabled means that the selected option for a test run can be overridden. Even if Debbie selected "No Test Run," the system will still execute all local tests if that specific checkbox is activated. This feature is particularly useful for ensuring that all tests, which may be crucial for maintaining code quality, are validated during the deployment process, regardless of the user's immediate selection.

When this checkbox is active, it takes precedence and ensures that local tests are included in the deployment pipeline, which can be important for reducing the risk of introducing errors into the UAT environment. It highlights the importance of understanding how various settings interrelate in the deployment process to avoid unexpected outcomes.

The other choices, while they may seem plausible, do not accurately describe why the tests still ran. For example, options that reference role permissions or specific UAT behaviors do not directly contribute to the scenario where a user's preference is overridden by an active setting in the system. Understanding how these various features work together is critical for using the platform effectively.