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213.38.56.0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 any
Router(config) # router rip
Router(config-router) # distribute-list 12 in g0/1
Router(config-router) # network 213.33.56.0
B) Router(config) # router rip
Router(config-router) # passive-interface g0/1
Router(config-router) # network 213.33.56.0 255.255.255.128
Router(config-router) # network 213.33.56.128 255.255.255.128
C) Router(config) # router rip
Router(config-router) # passive-interface g0/1
Router(config-router) # network 213.33.56.0
D) Router(config) # passive-interface g0/1
Router(config) # router rip
Router(config-router) # network 213.33.56.0