单项选择题

A、D192.168.168.0/24[90/2195456]via192.168.200.1,00:00:09,Ethernet0
B、O192.168.168.0/24[110/1012]via192.168.200.1,00:00:22,Ethernet0
C、R192.168.168.0/24[120/1]via192.168.200.1,00:00:17,Ethernet0
D、S192.168.168.0/24[1/0]via192.168.200.1