What is the definition of an OSPF link?

A. Two routers participating in OSPF routing
B. Two routers that share the same area ID
C. A routed interface added to the OSPF process
D. Two routers that share the same AS number

C. A link is a routed interface that is assigned to a network and participates in the OSPF process. This link will be tracked by the OSPF process for up/down information as well as the network it is associated with.