What does the command ‘rep admin vlan 100’ accomplish?

What does the command ‘rep admin vlan 100’ accomplish?

A.
confines flooding of REP messages to VLAN 100

B.
reserves REP admin VLAN to 100 so that no REP messages are sent on VLAN 100

C.
forces VLAN 100 into a REP block state

D.
this is an invalid command