The ASBR-summary LSA is :

A.
Generated by the ASBR and describes reachability to itself

B.
Generated by the ASBR and describes reachabilty to the ABR

C.
Generated by the ABR and describes reachabilty to the ASBR for routers in a different area from the ASBR

D.
Generated by the ABR and describes reachabilty to the ASBR for routers in the same area with the ASBR