Which of the following functions does the "ifconfigen4 down" perform?

Which of the following functions does the “ifconfigen4 down” perform?

A.
Removes the en4 interface.

B.
Removes the en4’s network route.

C.
Stops all traffic through the en4 interface.

D.
Stops all traffic through the en4 and removes itsnetwork route from the routing table.