You manage a web application that stores data in a Cloud SQL database. You need to improve the read performance of the application by offloading read traffic from the primary database instance. You want to implement a solution that minimizes effort and cost. What should you do?

A. Use Cloud CDN to cache frequently accessed data. B. Store frequently accessed data in a Memorystore instance. C. Migrate the database to a larger Cloud SQL instance. D. Enable automatic backups, and create a read replica of the Cloud SQL instance.