You have a Cloud Run service that connects to a Cloud SQL Enterprise edition database instance using the default Cloud SQL connection. You need to enable more than 100 connections per Cloud Run instance. What should you do?

A. Increase the queries per minute quota limit of the Cloud SQL Admin API. B. Increase the max_connection flag in Cloud SQL for PostgresSQL. C. Upgrade to Cloud SQL Enterprise Plus edition. D. Use Cloud SQL Auth Proxy in a sidecar.