A company provides an online service for posting video content and transcoding it for use by any mobile platform. The application architecture uses AmazonElasti...

A company provides an online service for posting video content and transcoding it for use by any mobile platform. The application architecture uses AmazonElastic File System (Amazon EFS) Standard to collect and store the videos so that multiple Amazon EC2 Linux instances can access the video content for processing. As the popularity of the service has grown over time, the storage costs have become too expensive.
Which storage solution is MOST cost-effective?