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

Answer options:

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)

ABCD