You are running a legacy application in a compute instance on Oracle Cloud Infrastructure (OCI). To provide enough space for it to store internal data, a block volume is attached to the instance in paravirtualized mode. Your application is not resilient to crash-consistent backup. What should you do to backup the block volume in a secure and cost effective way? (Choose the best answer.) 

Answer options:

A. Save your application data, detach the block volume and create a clone.
B. Create a volume group, add the boot volume and then run the volume group backup.
C. Create a backup, detach the block volume and save your application data.
D. Save your application data, detach the block volume and create a backup.

B