What is true regarding MPLS-TE configurations?
A.
The command `mpls traffic-eng tunnels’ is only needed in a global configuration.
B.
The command `mpls traffic-eng tunnels’ is only needed in an interface configuration.
C.
The command `mpls traffic-eng tunnels’ is needed in both global and interface configurations.
D.
The command `mpls traffic-eng tunnels’ is only needed in OSPF or ISIS router configurations.
E.
The command `mpls traffic-eng tunnels’ is not needed.