Which statement is true about a ProxySG with factory settings:

A.
To get network access, initial setup is necessary — ProxySG does not have an IP address until
then

B.
Unconfigured ProxySG responds to some of the pre-built IP addresses, which are contained in
the private IP address ranges 10.0.0.0/255.0.0.0 and 172.16.0.0/255.240.0.0 and
192.168.0.0/255.255.0.0 .

C.
Unconfigured ProxySG tries to obtain IP address from a DHCP server

D.
Unconfigured ProxySG sends RARP request to look up its IP address from the MAC address of
its network interface card. If it cannot get a valid IP address, initial setup is required.

Explanation: