An engineer is setting up a routing instance to route the traffic across the back-up tunnel on a
deployed Cisco MPLS TE next-hop protection. Which option describes the result?

A.
a static route that points to the link

B.
BGP routes that points to the link

C.
an OSPF or IS-IS instance that explicitly advertises the back-up tunnel

D.
rerouted traffic by the back-up tunnel in the event of link failure