Which statement describes the process ID that is used to run OSPF on a router?

The process ID is not globally significant and does not represent the AS number; OSPF uses area IDs and router IDs for broader identification.

The OSPF process ID is locally significant, meaning it is unique to the router on which it is configured and does not need to match process IDs on other OSPF routers in the same area or autonomous system. Its primary function is to distinguish between multiple OSPF instances if they were to run on a single router, each with its own OSPF database.

The OSPF process ID is not used to identify OSPF stub areas; stub areas are configured explicitly with the 'area <area-id> stub' command.

Since the process ID is locally significant, it does not need to be the same throughout an area; only the area ID must match among routers in the same area.