24 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