You want to migrate your on-premises PostgreSQL database to Compute Engine. You need to migrate this database with the minimum downtime possible. What should you do?

A. Perform a full backup of your on-premises PostgreSQL, and then, in the migration window, perform an incremental backup. B. Create a read replica on Cloud SQL, and then promote it to a read/write standalone instance. C. Use Database Migration Service to migrate your database. D. Create a hot standby on Compute Engine, and use PgBouncer to switch over the connections.