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Which AWS service is best suited for indexing and retrieving metadata of files stored in Amazon S3 with single-digit millisecond latency for a web application?
A
Amazon DynamoDB, a NoSQL database service offering high-performance data retrieval with consistent single-digit millisecond latency, suitable for indexing file metadata.
B
Amazon EC2, a scalable computing service that does not provide the required latency for data retrieval.
C
AWS Lambda, a compute service that automatically manages compute resources but is not designed for high-speed data retrieval.
D
Amazon RDS, a relational database service that automates database administration but does not meet the latency requirements for this scenario.
