A Solutions Architect Is Designing a Customer-Facing Application

A solutions architect is designing a customer-facing application. The application is expected to have a variable amount of reads and writes depending on the time of year and clearly defined access patterns throughout the year. Management requires that database auditing and scaling be managed in the AWS Cloud. The Recovery Point Objective (RPO) must be less than 5 hours. Which solutions can accomplish this? (Choose two.)

A) Use Amazon DynamoDB with auto scaling. Use on-demand backups and AWS CloudTrail.
B) Use Amazon DynamoDB with auto scaling. Use on-demand backups and Amazon DynamoDB Streams.
C) Use Amazon Redshift Configure concurrency scaling. Enable audit logging. Perform database snapshots every 4 hours.
D) Use Amazon RDS with Provisioned IOPS. Enable the database auditing parameter. Perform database snapshots every 5 hours.
E) Use Amazon RDS with auto scaling. Enable the database auditing parameter. Configure the backup retention period to at least 1 day.