A workstation is unable to route to the local router. You need to re-establish a default route to resolve the routing issue. When attempting to add the default route you get the message "network unreachable."

What would cause this problem?

A.
You already have a default route in the routing table.

B.
You have run the ndd -set /dev/ip ip_forwarding 0 command.

C.
The host is its own default router, as specified in the routing table.

D.
The host is on a different network to the host you are specifying as the default router.