单选题在Cisco路由器上封禁IP地址为211.78.25.23的主机，下列access-list配置，正确的是______。

A、 access-list 112 permit any any ipaccess-list 112 deny ip host 211.78.25.23 anyaccess-list 112 deny ip any host 211.78.25.23
B、 access-list 112 deny ip host 211.78.25.23 anyaccess-list 112 deny ip any host 211.78.25.23access-list 112 permit any any ip
C、 access-list 112 deny ip host 211.78.25.23 anyaccess-list 112 deny ip any host 211.78.25.23access-list 112 permit ip any any
D、 access-list 112 deny ip host 211.78.25.23 anyaccess-list 112 deny ip host any 211.78.25.23access-list 112 permit ip any any

【正确答案】 C

【答案解析】