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