如果只允许IP地址为192.168.12.24的主机访问外部网,则正确的配置为()
A.access-list 101 permit ip 192.168.12.24 0 any B.access-list 101 permit ip 192.168.12.24 255.255.255.255 any C.access-list 101 permit ip any 192.168.12.24 0 D.access-list 101 permit ip any 192.168.12.24 255.255.255