Refer to the exhibit. An engineer configured R6 as the headend LSR of an RSVP-TE LSP to router XR2, with the dynamic path signaled as R6-R2-R5-XR2. and set the OSPF cost of all links to 1. MPLS autotunnel backup Is enabled on all routers to protect the LSP. Which two NNHOP backup tunnels should the engineer use to complete the implementation? (Choose two.)
A. The R6 backup tunnel path R6-R1-R4-R5.
B. The R2 backup tunnel path R2-R5 across the alternate link.
C. The R2 backup tunnel path R2-R1-R4-XR1-XR2.
D. The R6 backup tunnel path R6-R2-R5
E. The R6 backup tunnel path R6-R1-R2.
