The following output was taken from the show ip bgp command on Router R2. In this case, which of the following commands are most likely to already be configured on R2?（） BGP router identifier 11.11.11.11, local AS number 11 ... Neighbor V AS Ms gRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd 1.1.1.1 4 1 87 87 0 0 0 00:00:06 Idle (Admin) 2.2.2.2 4 3 173 183 41 0 0 00:58:47

• A、router bgp 11
• B、neighbor 1.1.1.1 remote- as 11
• C、neighbor 2.2.2.2 prefix - limit 1
• D、neighbor 1.1.1.1 shutdown