单选题The following routes exist in the Testking router（）AR 12.18.8.0/24 [120/1] via 12.18.2., 00:00:10, Serial0BR 12.18.11.0/24 [120/7] via 12.18.9.1, 00:00:03, Serial1CC 12.18.1.0/24 is directly connected, Ethernet0DR 12.18.5.0/24 [120/15] via 12.18.2.2, 00:00:10, Serial0
单选题
The following routes exist in the Testking router（）
A
R 12.18.8.0/24 [120/1] via 12.18.2., 00:00:10, Serial0
B
R 12.18.11.0/24 [120/7] via 12.18.9.1, 00:00:03, Serial1
C
C 12.18.1.0/24 is directly connected, Ethernet0
D
R 12.18.5.0/24 [120/15] via 12.18.2.2, 00:00:10, Serial0
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