which four new resource record types?

In RFC 4034, DNSSEC introduced which four new resource record types? (Choose four.)

A.
DNS Public Key (DNSKEY)

B.
Next Secure (NSEC)

C.
Resource Record Signature (RRSIG)

D.
Delegation Signer (DS)

E.
Top Level Domain (TLD)

F.
Zone Signing Key (ZSK)