Which Amazon S3 storage class is MOST cost-effective for unknown access patterns?

Explanations:

S3 Standard is designed for frequently accessed data and has higher costs compared to other classes for storage and access, making it less suitable for unknown access patterns.

S3 Standard-IA is meant for infrequently accessed data, which can be more cost-effective than S3 Standard, but it incurs retrieval fees that may not be ideal for unknown access patterns.

S3 One Zone-IA is cheaper than S3 Standard-IA but stores data in a single availability zone, making it less resilient. It still incurs retrieval fees, which may not be optimal for uncertain access.

S3 Intelligent-Tiering automatically moves data between two access tiers (frequent and infrequent) based on changing access patterns, optimizing costs for unknown access patterns.