Answer: Amazon Neptune

## Explanation Amazon Neptune is AWS's fully managed graph database service that is specifically designed for graph database workloads. Here's why it's the correct choice: - **Graph Database**: Amazon Neptune is purpose-built for graph databases, which store data as nodes and edges to represent relationships - **Scalable**: Neptune automatically scales storage and can handle read replicas for scaling read performance - **Highly Available**: It provides high availability through Multi-AZ deployments with automatic failover - **Managed Service**: AWS handles the operational aspects like backups, patching, and maintenance **Why the other options are incorrect:** - **Amazon Aurora**: A relational database compatible with MySQL and PostgreSQL, not a graph database - **Amazon Redshift**: A data warehouse service for analytics, not a graph database - **Amazon DynamoDB**: A NoSQL key-value and document database, not specifically designed for graph data For graph database requirements with scalability and high availability, Amazon Neptune is the appropriate AWS service.

Author: Ritesh Yadav