A Company Has a Small Number of Systems in Their

A company has a small number of systems in their Symantec Endpoint Protection Manager (SEPM) group with federal mandates that AntiVirus definitions undergo a two week testing period. After being loaded on the client, the tested virus definitions must remain unchanged on the client systems until the next set of virus definitions have completed testing. All other clients must remain operational on the most recent definition sets. An internal LiveUpdate Server has been considered as too expensive to be a solution for this company. What should be modified on the SEPM to meet this mandate?

A) The LiveUpdate Content policy for this group should be modified to use a specific definition revision.
B) The LiveUpdate Settings policy for this group should be modified to use an Explicit Group Update Provider.
C) The SEPM site LiveUpdate settings should be modified so the Number of content revisions to keep is set to 14.
D) The SEPM site LiveUpdate settings should be modified so the Number of content revisions to keep is set to 1.