Which two statements are true of OSPF stub areas? (Choose two.)

A.
Stub areas might contain ASBRs and can receive external Extern (Type 5) LSAs from other areas.

B.
Stub areas cannot be crossed in the creation of a virtual link.

C.
Stub areas cannot receive any Summary (Type 3) LSAs.

D.
Stub areas cannot contain an ASBR.

Explanation:
Stubby A stubby area is an area that is not able to accept LSA type 5 which contains routes from outside the OSPF domain (Redistributed into OSPF), these are also referred to as external routes. Traffic that is destined for a location outside of the OSPF network is only able to exit the area via a default route (which is injected by the ABR).

LSA Type 5 Autonomous System (AS) external link advertisements Only ASBRs send this type of LSA, it contains a list of external routes that are reachable via the ASBR. This LSA type is flooded throughout the entire OSPF domain.