A company runs an application on a group of Amazon Linux EC2 instances. For compliance reasons, the company must retain all application log files for 7 years. The log files will be analyzed by a reporting tool that must be able to access all the files concurrently.
Which storage solution meets these requirements MOST cost-effectively?
A . Amazon Elastic Block Store (Amazon EBS)
B . Amazon Elastic File System (Amazon EFS)
C . Amazon EC2 instance store
D . Amazon S3
Answer: D