Correct Answer is B, C, and D
DynamoDB and ElastiCache are perfect options for storing session data.
AWS Documentation mentions the following on these services:
Amazon DynamoDB is a fast and flexible NoSQL database service for all applications that need consistent, single-digit millisecond latency at any scale. It is a fully managed cloud database and supports both document and key-value store models. Its flexible data model, reliable performance, and automatic scaling of throughput capacity makes it a great fit for mobile, web, gaming, ad tech, IoT, and many other applications.
For more information on AWS DynamoDB, please visit the following URL:
ElastiCache is a web service that makes it easy to set up, manage, and scale a distributed in-memory data store or cache environment in the cloud. It provides a high-performance, scalable, and cost-effective caching solution, while removing the complexity associated with deploying and managing a distributed cache environment.
For more information on AWS ElastiCache, please visit the following URL: