An IT team stores sensitive images in Amazon S3. After a year, images are moved to archival storage; they are rarely accessed but must remain highly resilient and be retrievable within 24 hours when needed. Which storage approach is the most cost-effective while meeting these requirements?

The correct option leverages S3 Standard-IA for the first year, which is cost-effective for data accessed infrequently but requiring rapid access. For archival, S3 Glacier Deep Archive is the most cost-effective storage class for data rarely accessed, and standard retrieval meets the 24-hour retrieval requirement. Bulk retrieval in S3 Glacier Deep Archive is cheaper but can take up to 48 hours, exceeding the 24-hour requirement. S3 Intelligent-Tiering is a good option for unknown access patterns but might be more expensive than directly choosing Standard-IA when access patterns are known. S3 One Zone-Infrequent Access is not highly resilient as it stores data in a single Availability Zone.