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As a DevOps Engineer optimizing resource utilization in Google Cloud Platform for a project utilizing microservices on Google Kubernetes Engine (GKE), what is the most effective method to monitor the cluster's performance for optimal resource utilization?
A
Deploy a custom monitoring solution on Compute Engine to scrape GKE cluster metrics and analyze resource utilization.
B
Set up Google BigQuery to store GKE resource utilization data and analyze it using SQL queries.
C
Enable Cloud Monitoring and Logging on your GKE cluster, and use custom metrics to track resource utilization levels.
D
Create a cron job on a Compute Engine instance to periodically check GKE cluster resource utilization using the kubectl top command.