Which three restrictions apply to OSPF stub areas? (Choose three.)

A.
The area cannot be a backbone area.

B.
Inter area routes are suppressed.

C.
The area has no more than 10 routers.

D.
No virtual links are allowed.

E.
No autonomous system border routers are allowed.

F.
Redistribution is not allowed unless the packet is changed to a type 7 packet.