Exhibit  Which command&ens

Exhibit  Which command will ensure that Company2 will be the primary router for traffic using the gateway  address of 172.16.15.20？ （）

• A On R2 add the command standby 1 priority 80
• B On R1 add the command standby 1 priority 110
• C On R1 add the command standby 1 priority 80
• D On R2 remove the command standby 1 preempt