Which of the following is true about routers internal to a totally NSSA area?()
A.
Routers cannot redistribute external routes into the area.
B.
Routers should have zero Type 3 LSAs in their LSDBs.
C.
Routers should have zero Type 5 LSAs in their LSDBs.
D.
Routers should learn default routes from the ABRs attached to the area.