Which of the following statements about data backup policies are true? (Multiple Choice)

Which of the following statements about data backup policies are true? (Multiple Choice)
A . Each backup needs a full backup as the basis.
B . Differential incremental backup minimizes the use of backup space.
C . Differential incremental backup is used to back up data changes made between two backups.
D . In the same scenario, synthetic backup outperforms incremental backup in terms of restoration time.

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Answer: ABCD