Why would a customer select “Use Change Journal” in the Symantec NetBackup 7.5 client settings?

A.
to identify changes of the client’s VxFS change journal

B.
to increase performance of an NTFS volume that contains more than 1,000,000 files

C.
to increase performance of an NTFS volume file system that contains a few very large files

D.
to increase performance of a VxFS volume that contains more than 1,000,000 files