Which command would you use to save the interface information before upgrading a GAiA Gateway?

Which command would you use to save the interface information before upgrading a GAiA
Gateway?

A.
netstat –rn > [filename].txt

B.
ipconfig –a > [filename].txt

C.
ifconfig > [filename].txt

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

Explanation: