下面哪条命令用于在路由器上添加一条默认路由?( )
A.
Router #ip route 0.0.0.0 0.0.0.0 192.168.100.1
B.
Router #ip route 0.0.0..0 255.255.255.255 192.168.100.1
C.
Router (config)#ip route 0.0.0.0 0.0.0.0 192.168.100.1
D.
Router (config)#ip route 0.0.0.0 255.255.255.255 192.168.100.1