What is the cause of the issue?

A backup administrator is performing a Block-Based Backup of a RHEL Server and it fails.

What is the cause of the issue?
A . PSS is enabled for target Data Domain devices.
B . The Igtobbb package is not installed.
C . AFTD device is enabled for Client Direct.
D . LVM or VxVM are enabled on the OS level.

Answer: C