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An application using Amazon RDS experiences performance issues during high traffic. The technical lead suggests implementing a caching solution to alleviate read traffic. Which solution offers the least complexity for this purpose?
A
Amazon ElastiCache for Memcached to reduce database read load.
B
DynamoDB replication with a DAX cluster for read traffic management.
C
Multi-AZ RDS deployment to distribute read requests to a standby instance.
D
Amazon ElastiCache for Redis to handle read requests from the main database.
