Which resource records are necessary to perform subzone delegation on a DNS server?

A.
NS record and reverse record for the nameserver responsible for the subzone.

B.
NS record and MX record for the nameserver responsible for the subzone.

C.
MX record and A record for the nameserver responsible for the subzone.

D.
NS record and A record for the nameserver responsible for the subzone.

E.
NS record and SOA record for the nameserver responsible for the subzone.