Which of the following provides the GREATEST assurance that data can be recovered and restored in a timely manner in the event of data loss?

Which of the following provides the GREATEST assurance that data can be recovered and restored in a timely manner in the event of data loss?
A . Backups of information are regularly tested.
B . Data backups are available onsite for recovery.
C . The recovery plan is executed during or after an event
D . full data backup is performed daily.

Answer: A