Which statement is true about a journal-based backup?

A.
A list of changed files is maintained on the client.

B.
Only the parts of a file that have changed are backed up.

C.
It allows data restoration without the need to contact the IBM Tivoli Storage Manager server.

D.
It backs up files that are selected by the user regardless of whether or not the files have
changed since the last backup.

Explanation: