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.