An engineer is configuring MPLS Traffic Engineering Inter AS TE in a service provider network. Which of the following tasks must be performed to reoptimize tunnels for loose path reoptimization procedure on the routers?
A. BGP must be configured on each router being used for MPLS TE.
B. Each router must be configured with the mpls traffic-eng reoptimize events link-up command.
C. Next loose IP address in the explicit path must be specified using the next-address loose A.B.C.D command.
D. Midpoint reoptimization must be configured on all routers.
