What is a key consideration when assessing a nested mount file system and an NDMP
Volume Based Backup (VBB) backup strategy?

A.
Multithreaded PAX format for enhanced backup performance is supported

B.
Directory Direct Access Recovery (DDAR) for fast recovery is supported

C.
Selectively backing up a subset of the file system is unsupported

D.
Individual file recovery without the destructive restore flag is unsupported