Which attribute does Data ONTAP use the identify Snapshot copies between primary and secondary FlexVol volumes in a SnapVault relationship?

A.
FlexVol name

B.
Snapshot prefix

C.
SnapMirror policy

D.
SnapMirror label

Explanation:
(https://library.netapp.com/ecmdocs/ECMP1366833/html/GUID-D70AE6D3-4104-4763-A2B5-FF6D4E0BF921.html)