Refer to the exhibit. Routers RTA and RTB are running BGP but the session is active. Whatcommand needs to be added to establish the BGP session？（）

• A、ip route 10.10.10.1 255.255.255.255 s0/0 ip route 10.10.10.1 255.255.255.255 s0/1
• B、network 10.10.10.0
• C、no synchronization
• D、neighbor 10.10.10.1 next-hop-self