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

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

A.
It is globally significant and is used to represent the AS number.

B.
It is locally significant and is used to identify an instance of the OSPF database.

C.
It is globally significant and is used to identify OSPF stub areas.

D.
It is locally significant and must be the same throughout an area.