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