What is sequence of commands will configure router?

In order to understand the question and the illustration, you should first know what OSPF is. This refers to Open Shortest Path First. This is a type of routing protocol for the different IP networks. This type of route is used in order to find the best path for the different data packets.

There are various connected networks that are available based on the given but the best one has to be router OSPF 1. The given can be confusing because there are actually only two choices. I am assuming that C is the best answer to this question as it is the shortest path.