You need to ensure that multiple backup copies are maintained

You have a server named Server1 that runs Windows Server 2012 R2.
Server1 is backed up by using Windows Server Backup. The backup configuration is shown
in the exhibit. (Click the Exhibit button.)

You discover that only the last copy of the backup is maintained.
You need to ensure that multiple backup copies are maintained.
What should you do?

A.
Modify the backup destination.

B.
Configure the Optimize Backup Performance settings.

C.
Modify the Volume Shadow Copy Service (VSS) settings.

D.
Modify the backup times.

Explanation:
A, The destination in the exhibit shows a network share is used. If a network share is being
used only the latest copy will be saved
http://windows.microsoft.com/en-us/windows7/where-should-i-save-my-backup