Option C is correct because it correctly identifies Container Registry as the recommended service for storing container images in Google Kubernetes Engine and specifies the creation of a Kubernetes Deployment, which is the appropriate method for deploying an app as a workload. Options A and D incorrectly suggest using Cloud Storage for image storage, which is not recommended. Option B, while suggesting the correct method for workload deployment (Kubernetes Deployment), also incorrectly recommends Cloud Storage for image storage. Kubernetes Services are used for networking, not as compute workloads, making options A and D incorrect for workload deployment. For more information, refer to Google Kubernetes Engine documentation and Kubernetes concepts on workloads and deployments.