Which statement is true regarding the security of IPv6?

A.
IPsec is an integrated part of IPv6 and, therefore, all IP-related security threats are
eliminated when using an IPv6-only network.

B.
Existing IPv4 firewalls can secure IPv6 traffic if IPv6 is tunneled over IPv4.

C.
Existing IPv4 firewalls can secure IPv6 traffic unless IPv6 is tunneled over IPv4.

D.
Endpoints that tunnel IPv6 over IPv4 can traverse firewalls without inspection of the IPv6
traffic