What should you do to ensure that workloads in the development (Digital Leader)

Correct answer: D) Put the development resources in their own project.
To ensure that workloads in the development environment are fully isolated from production workloads on Google Cloud, it is a best practice to organize resources into separate projects. This way, you can control access, permissions, and billing separately for each project. Putting the development resources in their own project provides strong isolation between development and production environments.
Options A and B (applying a unique tag or associating resources with their own network) provide some level of isolation but may not be sufficient for complete separation. Option C (associating resources with their own billing account) can provide billing separation but may not be as effective for resource and access control as using separate projects. Therefore, option D is the most comprehensive solution for ensuring isolation in a Google Cloud environment.