A User Has Stored Data on an Encrypted EBS Volume

Multiple Choice

A user has stored data on an encrypted EBS volume. The user wants to share the data with his friend's AWS account. How can user achieve this?

A) Create an AMI from the volume and share the AMI
B) Copy the data to an unencrypted volume and then share
C) Take a snapshot and share the snapshot with a friend
D) If both the accounts are using the same encryption key then the user can share the volume directly