A company stores large datasets of their completed projects in an Amazon S3 bucket. This data is rarely accessed but must be preserved for regulatory compliance. The datasets must be retrievable within a few hours if accessed. Which storage class should the Solutions Architect recommend to optimize costs while meeting the data retrieval requirements?
Amazon S3 Glacier Flexible Retrieval
Amazon S3 Standard
Amazon S3 One Zone-Infrequent Access
Amazon S3 Intelligent-Tiering