What happens to data on an ephemeral volume of an EBS-backed EC2 instance if it is terminated or if it fails?

What happens to data on an ephemeral volume of an EBS-backed EC2 instance if it is terminated or if it fails?
A . Data is automatically copied to another volume.
B . The volume snapshot is saved in S3.
C . Data persists.
D . Data is deleted.

Answer: D

Explanation:

Any data on the instance store volumes persists as long as the instance is running, but this data is deleted when the instance is terminated or if it fails (such as if an underlying drive has issues). After an instance store-backed instance fails or terminates, it cannot be restored.

Reference: http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/RootDeviceStorage.html