When a ProxySG is being used as an IPv4-to-IPv6 gateway, how does the ProxySG determine the
IPv6 address of the content server to which a client request should be directed?

A.
By querying the IPv6 DNS server(s) that have been specified in the ProxySG configuration.

B.
By querying the Internet gateway router that has been specified in the ProxySG configuration.

C.
By using the IPv4-to-IPv6 lookup table that the administrator has installed on the ProxySG.

Explanation: