You need to change the hostname and IP address of a server. Without manually editing all of the required files, which command can be run to restore a system configuration to an unconfigured state, ready to be reconfigured again restore a system configuration to an unconfigured state, ready to be reconfigured again? ()
	A. /usr/sbin/sys-unconfig
	B. /usr/sbin/unconfig
	C. /sbin/ipconfig
	D. /usr/sbin/set_parms initial