When running OSPF, what would cause router A not to form an adjacency with router B?

Refer to the exhibit.

When running OSPF, what would cause router A not to form an adjacency with router B?
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 identifier on router A is different than the process identifier on router B.

Pass Cisco CCNA 200-301 Exam in First Attempt FULL Printable PDF and Software. VALID exam to help you pass.