You are running a transactional application on Cloud SQL for PostgreSQL in Google Cloud. The database is running in a high availability configuration within one region. You have encountered issues with data and want to restore to the last known pristine version of the database. What should you do?

A. Create a clone database from a read replica database, and restore the clone in the same region. B. Create a clone database from a read replica database, and restore the clone into a different zone. C. Use the Cloud SQL point-in-time recovery (PITR) feature. Restore the copy from two hours ago to a new database instance. D. Use the Cloud SQL database import feature. Import last week's dump file from Cloud Storage.