某校园网采用RIPv1路由协议，通过一台Cisco路由器R1互连2个子网，地址分别为213.33.56.0和213.33.56.128，掩码为255.255.255.128，并要求过滤g0/1接口输出的路由更新信息。那么R1正确的路由协议配置是______。

A. Router (config)#access-list 12 deny anyRouter (config)#router ripRouter (config-router)#distribute-list 12 in g0/1Router (config-router)#network 213.33.56.0
B. outer (config)#router ripRouter (config-router)#passive-interface g0/1Router (config-router)#network 213.33.56.0 255.255.255.128Router (config-router)#network 213.33.56.128 255.255.255.128
C. RRouter (config)#router ripRouter (config-router)#passive-interface g0/1Router (config-router)#network 213.33.56.0
D. Router (config)#passive-interface g0/1Router (config)#router ripRouter (config-router)#network 213.33.56.0