Which three LSA types are valid for OSPFv2?(Choose three)

Which three LSA types are valid for OSPFv2?(Choose three)
A . Router LSA: an LSA sent by every router. This LSA includes the state and the cost of all links and a list of all OSPFv2 neighbors on the link
B . AS Internal LSA: an LSA generated by the ASB
C . AS Internal LSAs are flooded only within the autonomous system
D . Backbone Summary: an LSA sent by the backbone router to all the OSPF areas
E . DR Summary LSA: an LSA sent by the DR router to all the others on network
F . Default LSA: an LSA generated by the ASB
G . These LSAs are used to propagate default route into OSPF
H . Network LSA: an LSA sent by the D
. This LSA lists all routers in the multi-access network
. Opaque LSA: an LSA used to extend OSPF

Answer: AFG