The correct options are Any public repository, The same repository as the workflow file, and A published Docker container image on Docker Hub.

For Any public repository, GitHub Actions supports referencing actions that are hosted in publicly accessible repositories. A workflow can use the uses key with the owner and repository plus a specific version to pull and run the action from this location.

For The same repository as the workflow file, teams can keep action code in the same repository and reference it with a relative path using the uses key. This makes versioning and updates straightforward within the same codebase and does not require a separate repository.

For A published Docker container image on Docker Hub, workflows can run a container action by pointing the uses key to a published image using the docker scheme. This lets teams reuse a containerized action that is hosted there without storing action code in a repository.

The option Google Artifact Registry is not a supported source for reusable actions with the uses key. While you can authenticate to and pull images from that registry in custom steps, GitHub Actions does not treat it as a first class location for actions that workflows can reference directly.

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