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