Refer to the exhibit. When running OSPF, What would cause router A not to form an adjacency with router B?()<br /> <img src="https://nimg.ppkao.com/2018-07/zhanglijun/2018072410262779147.jpg?sign=22620a36ae19a43c3371c7a68e7d00ee&t=62d49acd" />
A、The loopback addresses are on different subnets
B、The value of the dead timers on the router are different
C、Route summarization is enabled on both routers
D、The process indentifier on router A is different than the process identifier on router B