When creation of an EBS snapshot is initiated, but not completed, the EBS volume:

When creation of an EBS snapshot is initiated, but not completed, the EBS volume:
A . Can be used while the snapshot is in progress.
B . Cannot be detached or attached to an EC2 instance until the snapshot completes
C . Can be used in read-only mode while the snapshot is in progress.
D . Cannot be used until the snapshot completes.

Answer: D