What does the Amazon S3 Intelligent-Tiering storage class offer?
Payment flexibility by reserving storage capacity
Long-term retention of data by copying the data to an encrypted Amazon Elastic Block Store (Amazon EBS) volume
Automatic cost savings by moving objects between tiers based on access pattern changes
Secure, durable, and lowest cost storage for data archival
Explanations:
Amazon S3 Intelligent-Tiering does not provide payment flexibility by reserving storage capacity. Instead, it automatically manages costs based on access patterns.
This option describes a feature related to Amazon EBS rather than S3 Intelligent-Tiering. S3 Intelligent-Tiering focuses on optimizing storage costs without needing to manage data encryption directly.
S3 Intelligent-Tiering automatically moves objects between two access tiers (frequent and infrequent) based on changing access patterns, leading to cost savings.
Although S3 provides secure and durable storage, the lowest cost for archival data is typically associated with S3 Glacier, not Intelligent-Tiering, which is designed for frequent access patterns.
As I see it, the answer is:
Automatic cost savings by moving objects between tiers based on access pattern changes