Which AWS service allows for file sharing between multiple Amazon EC2 Instances?

Amazon Elastic File System (Amazon EFS)is a scalable, fully managed, shared file storage service that is accessible from multiple Amazon EC2 instances. EFS is designed to provide highly available and durable file storage that can be mounted across multiple instances, making it ideal for shared file access.

Why other options are not suitable:

A. AWS Direct Connect: A network service to establish a dedicated network connection to AWS, not a file-sharing solution.

B. AWS Snowball Edge: A data transfer device for migrating data to and from AWS, not for ongoing file sharing.

C. AWS Backup: A service for centralized backup management, not for sharing files between EC2 instances.