What determines if the router implements a classless route lookup process? | CCNA

     A.    Child routes are present in the routing table.
     B.    A classless routing protocol has been configured on the router.
     C.    The command ip classless is enabled on the router.
     D.    Multiple routes with different masks to the same destination are in the routing table.
     E.    Routing table entries have a next-hop IP address and an exit interface for each child route.

ANS: C