A company moves a database from a self-managed EC2 instance to Amazon RDS. Which TWO responsibilities still belong to the customer? Select TWO.

1. Decide which application identities are authorized to access the database.
2. Perform maintenance on the database host operating system.
3. Replace the physical server when hardware fails.
4. Classify the data stored in the database according to business requirements.
5. Physically secure the AWS data center containing the database.