Which action will cause a currently in-sync SnapMirror relationship to fall out of sync?

A.
Running snapmirror update on the source storage system

B.
Running snapmirror release on the source storage system

C.
Modifying the /etc/snapmirror.conf file for the relationship on the source storage system

D.
Modifying the /etc/snapmirror.conf file for the relationship on the destination storage system