Cisco路由器执行show access-list命令显示如下一组信息
Standard IP access list block
deny 10.0.0.0, wildcardbits 0.255.255.255 log
deny 172.16.0.0, wildcard bits 0.15.255.255
permit any
根据上述信息，正确的access-list配置是（）
A. Router (config) #access-list standard block
Router (config-std-nacl) #deny 10.0.0.0 255.0.0.0 log
Router (config-std-nacl) #deny 172.16.0.0 255.240.0.0
Router (config-std-nacl) #permit any
B.Router (config) #ip access-list standard block
Router (config-std-nacl) #permit any
Router (config-std-nacl) #deny 10.0.0.0 0.255.255.255 log
Router (config-std-nacl) #deny 172.16.0.0 0.15.255.255
C. Router (config) #ip access-list standard block
Router (config-std-nacl) #deny 10.0.0.0 255.0.0.0 log
Router (config-std-nacl) #deny 172.16.0.0 255.240.0.0
Router (config-std-nacl) #permit any
D. Router (config) #ip access-list standard block
Router (config-std-nacl) #deny 10.0.0.0 0.255.255.255 log
Router (config-std-nacl) #deny 172.16.0.0 0.15.255.255
Router (config-std-nacl) #permit any
