In a single$-$area OSPFv$2$ routing domain, what types of LSAs can exist in the routing domain?

Type $1$ Router$-$LSA

Type $4$ ASBR$-$Summary$-$LSA

Type $2$ Network$-$LSA

Type $3$ Network$-$Summary$-$LSA

Type $5$ AS$-$External$-$LSA