Answer – B
The AWS Documentation mentions the following on EBS Volumes:
An Amazon EBS volume is a durable, block-level storage device that you can attach to a single EC2 instance. You can use EBS volumes as primary storage for data that requires frequent updates, such as the system drive for an instance or storage for a database application.
For more information on EBS Volumes, please refer to the below URL:
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/EBSVolumes.html