Which S3 storage class should the company use to meet these requirements?

Explanations:

S3 Intelligent-Tiering is designed for unpredictable access patterns and moves data between access tiers to optimize costs while keeping retrieval times low.

S3 Glacier Instant Retrieval is intended for archive data and provides low-cost storage but still has retrieval latencies unsuitable for frequently accessed data.

S3 Standard provides immediate access but is more expensive than Intelligent-Tiering for varying access patterns, making it less cost-effective.

S3 Standard-IA is cost-effective for infrequently accessed data, but it incurs retrieval costs, making it unsuitable for frequently and unpredictably accessed data.