A user has created a new raw EBS volume. The user mounts the volume on the instance to which it is attached. Which
of the below mentioned options is a required step before the user can mount the volume?

A.
Run a cyclic check on the device for data consistency

B.
Create a file system of the volume

C.
No step is required. The user can directly mount the device

D.
Resize the volume as per the original snapshot size

Explanation:
When a user is trying to mount a blank EBS volume, it is required that the user first creates a file system within the volume.
http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ebs-using-volumes.html