Which command would you use to save the IP address and routing information before upgrading a GAiA Gateway?

Which command would you use to save the IP address and routing information before
upgrading a GAiA Gateway?

A.
netstat –rn > [filename].txt

B.
ipconfig –a > [filename].txt

C.
cp /etc/sysconfig/network.C [location]

D.
ifconfig > [filename].txt