Answer: Cross region replication

**Explanation:** - **Cross region replication** (Option A) is the correct answer because it specifically enables data redundancy across different AWS regions. This feature creates a replica of your RDS database in a different AWS region, providing disaster recovery capabilities and geographic redundancy. - **Creating Read Replicas** (Option B) typically operates within the same region or across Availability Zones within the same region, but does not inherently provide cross-region redundancy. While you can create cross-region read replicas, this is a specific configuration that falls under cross-region replication capabilities. Cross-region replication in RDS provides: - Disaster recovery capabilities - Geographic data distribution - Compliance with data residency requirements - Reduced latency for global applications - Enhanced data durability across multiple geographic locations

Author: Ritesh Yadav