下列Cisco路由器进入vty配置模式后的命令提示符，正确的是______。

A．223.54.9.2和0080.c8f6.cc78
B．194.6.97.2和00d0.bcf1.ab14
C．223.54.9.1和00eo.6687.8d00
D．223.54.9.2和00d0.bcf1.ab14

A．Switch-3548 #vlan data
Switch-3548 (vlan) #vlan 21 name vl21
Switch-3548 (vlan) #vlan 22 name vl22
Switch-3548 (vlan) #exit
Switch-3548 #configure terminal
Switch-3548 (config) #int f0/1
Switch-3548 (config-if) #switchport access vlan 21
Switch-3548 (config) #int f0/2
Switch-3548 (config-if) #switchport access vlan 22
B．Switch-3548 #vlan data
Switch-3548 (vlan) #set vlan 21 name vl21
Switch-3548 (vlan) #set vlan 22 name vl22
Switch-3548 (vlan) #exit
Switch-3548 #configure terminal
Switch-3548 (config) #int f0/1
Switch-3548 (config-if) #switchport access vlan 21
Switch-3548 (config) #int f0/2
Switch-3548 (config-if) #switchport access vlan 22
C．Switch-3548 #vlan data
Switch-3548 (vlan) #vlan 21 name vl21
Switch-3548 (vlan) #vlan 22 name vl22
Switch-3548 (vlan) #exit
Switch-3548 #configure terminal
Switch-3548 (config) #int f0/1
Switch-3548 (config-if) #switchport allowed vlan 21
Switch-3548 (config) #int f0/2
Switch-3548 (config-if) #switchport allowed vlan 22
D．Switch-3548 #dan data
Switch-3548 (vlan) #vlan 21 name vl21
Switch-3548 (vlan) #vlan 22 name vl22
Switch-3548 (vlan) #exit
Switch-3548 #configure terminal
Switch-3548 (config) #int f0/1
Switch-3548 (config-if) #switchport access 21
Switch-3548 (config) #int f0/2
Switch-3548 (config-if) #switchport access 22