Refer to the exhibit.

Configure router A to use the same MTU size as router B.. OSPF behavior is controlled by interface state, area, timers, network type, cost, priority, router ID, and neighbor/adjacency rules. Cisco CCNA 200-301 v1.1 includes this under IP Connectivity, where the exam expects engineers to recognize the device behavior that actually produces the required outcome. The question is best solved by reading the operational clue rather than choosing a familiar acronym. The distractors confuse OSPF with unrelated metrics, local-only process values, or parameters that do not satisfy the adjacency or route-selection requirement. In a production network, the wrong choice would normally create an outage, leave a management or security gap, or send troubleshooting toward the wrong subsystem. The selected answer is the one that matches the control-plane, data-plane, wireless, security, services, or automation mechanism described in the question. That is why it remains the verified answer for this item.