The correct answer is B because a DaemonSet ensures that a copy of the monitoring pod is running on each node of the GKE cluster, making it the simplest and most efficient method to centralize monitoring. This approach automatically covers all nodes, including those added by auto-scaling, without requiring manual intervention or coordination among teams.

• A is incorrect as it would necessitate manual configuration for each application, which is impractical and inefficient, especially with multiple teams involved.
• C is incorrect because cluster initializers do not manage running pods; they customize cluster configurations during creation, and new nodes from auto-scaling would not have the monitoring pod by default.
• D is incorrect because StatefulSets are designed for applications requiring stable network identities and persistent storage, not for deploying monitoring pods across all nodes.

For further reading, consider this article on K8s Deployments vs StatefulSets vs DaemonSets.