S3 storage classes

You are a Solutions Architect for a company transitioning its on-premises archival data storage to Amazon S3. The company stores a large volume of financial records that are rarely accessed but must be retained for regulatory purposes. When access is required, the data should be available within a few hours. The company is looking to minimize storage costs while ensuring that the data is highly durable and can be retrieved when needed.

Which Amazon S3 storage class would you recommend for storing these rarely accessed financial records to minimize cost while ensuring durability and retrieval within a few hours?