A Celerra file system has a SnapSure schedule enabled for daily checkpoints. By using the
Microsoft Shadow Copy Client, a user can see previous versions of a certain file up to a certain
date in the past, but nothing else after that.

What could be the cause of this issue?

A.
The SavVol has reached a full state.

B.
Checkpoints are currently being used by an application.

C.
All of the checkpoints have been refreshed.

D.
There have been no changes to the file.