Answer: Amazon EC2 instance store for maximum performance, Amazon S3 for durable data storage, and Amazon S3 Glacier for archival storage

## Explanation Let's analyze each requirement: 1. **10 TB storage with maximum possible I/O performance for video processing**: - Amazon EC2 instance store provides the highest I/O performance because it's physically attached to the host server (ephemeral storage). - Amazon EBS (Elastic Block Store) is also high-performance but typically has slightly lower performance than instance store. - For maximum I/O performance, instance store is the best choice. 2. **300 TB of very durable storage for storing media content**: - Amazon S3 provides 99.999999999% (11 nines) durability, making it ideal for durable storage. - Amazon EFS (Elastic File System) is durable but doesn't match S3's durability guarantees. - S3 is designed for highly durable object storage. 3. **900 TB of storage for archival media**: - Amazon S3 Glacier is specifically designed for long-term archival storage with lower costs. - Amazon S3 Standard would be more expensive for archival data. **Why Option D is correct**: - **Instance store** for maximum I/O performance (video processing) - **Amazon S3** for highly durable storage (media content) - **Amazon S3 Glacier** for cost-effective archival storage **Why other options are incorrect**: - **Option A**: Uses EBS instead of instance store for maximum performance - **Option B**: Uses EBS instead of instance store for maximum performance, and EFS instead of S3 for durable storage - **Option C**: Uses EFS instead of S3 for durable storage, and S3 Standard instead of S3 Glacier for archival (more expensive) This solution provides the optimal balance of performance, durability, and cost-effectiveness for each specific use case.

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