Which Amazon S3 feature or storage class uses the AWS backbone network and edge locations to reduce latencies from the end user to Amazon S3?

Explanations:

S3 Cross-Region Replication is a feature that automatically replicates S3 objects across different AWS regions for disaster recovery and data redundancy. It does not directly address latency reduction from end users to S3.

S3 Transfer Acceleration uses the AWS global backbone network and CloudFront edge locations to speed up uploads and downloads of S3 objects, effectively reducing latencies for end users accessing S3.

S3 Event Notifications enable users to receive notifications about events related to S3 objects (e.g., object creation, deletion) but do not affect latency or utilize the AWS backbone network for speed enhancements.

S3 Standard-IA is a storage class designed for infrequently accessed data, providing lower storage costs but not specifically focused on reducing latencies through the AWS backbone network or edge locations.