When implementing MPLS TE tunnels on Cisco IOS XR routers, what is the tunnel setup and hold priority value range, and which value has the highest priority?
A. 0-63, where 0 is the highest priority
B. 0-63, where 63 is the highest priority
C. 0-7, where 0 is the highest priority
D. 0-7, where 7 is the highest priority
