单选题This question is about the formation of OSPF adjacency. An OSPF adjacency will not form correctly across a point-to-point link in the same area. Which would most likely cause this problem？（）AEach interface has a different OSPF cost.BEach interface is configured with secondary addresses as well as primary addresses.CEach interface has a different MTU size.DEach interface is configured with theip unnumbered loopback 0 command.
单选题
This question is about the formation of OSPF adjacency. An OSPF adjacency will not form correctly across a point-to-point link in the same area. Which would most likely cause this problem？（）
A
Each interface has a different OSPF cost.
B
Each interface is configured with secondary addresses as well as primary addresses.
C
Each interface has a different MTU size.
D
Each interface is configured with theip unnumbered loopback 0 command.
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