Your application uses a Cloud SQL for MySQL instance. Recently, you have noticed performance degradation during peak hours, leading to slow response times and frustrated users. You suspect that inefficient queries might be contributing to these issues. You want to pinpoint and analyze these problematic queries and pass them to the application team for optimizations. What should you do?

A. Use the underprovisioned instance recommender. B. Increase the Cloud SQL instance read_buffer_size flag. C. Enable and use Query Insights. D. Create a Cloud Monitoring alert based on the database/mysql/queries metric.