Which configuration on R1 enables TE 14 to be the primary tunnel and TE 124 to be come active when TE 14 is admin disabled?

Refer to the exhibit. Both MPLS TE tunnel 14 and MPLS TE tunnel 124 pass over the same physical links. Which configuration on R1 enables TE 14 to be the primary tunnel and TE 124 to be come active when TE 14 is admin disabled?
Exhibit:

A. Interface Tunnel14
tunnel mpls traffic-eng priority 3 1
!
Interface Tunnel124
tunnel mpls traffic-eng priority 5 4
B. Interface Tunnel14
tunnel mpls traffic-eng priority 4 1
!
Interface Tunnel124
tunnel mpls traffic-eng priority 3 2
C. Interface Tunnel14
tunnel mpls traffic-eng priority 7 7
!
Interface Tunnel124
tunnel mpls traffic-eng priority 1 1
D. Interface Tunnel14
tunnel mpls traffic-eng priority 3 2
!
Interface Tunnel124
tunnel mpls traffic-eng priority 4 1