Amazon S3 Versioning is correct because it preserves prior iterations of objects so you can recover files that were accidentally deleted or overwritten without changing how uploads are performed.

Amazon S3 Versioning stores multiple versions of an object in the same bucket so a delete creates a delete marker and previous versions remain available for restore. Enabling versioning on the bucket is an operational change on the bucket but it does not require altering client upload workflows, and it provides a quick, built-in way to roll back accidental changes.

AWS Backup can be used to create backups of S3 data but it introduces extra cost and operational steps and it is not the simple, immediate safeguard for accidental deletes or overwrites that versioning provides.

Amazon S3 Transfer Acceleration is designed to improve transfer speeds over long distances and it does not offer recovery or versioning features for accidental deletion or overwrite scenarios.

Amazon S3 Lifecycle configuration manages transitions and expirations to reduce storage costs and it can even delete objects on a schedule so it does not prevent accidental deletion and may remove older versions if configured to expire them.

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