The maximum number of routers per OSPF area typically depends on which three factors? (Choose three.)
Select 3 response(s).

A.
the kind of OSPF areas being implemented

B.
the number of external LSAs in the network

C.
the number of DRs and BDRs in the areas

D.
the number of virtual links in the areas

E.
how well the areas can be summarized

F.
the use of LSA filters