You Are Configuring MPLS Traffic-Engineering Tunnels in the Core

You are configuring MPLS traffic-engineering tunnels in the core. Which two ways exist for the tunnel path across the core? (Choose two.)

A) The dynamic path option is supported only with IS-IS.
B) Tunnels can be configured with dynamic path or explicitly defined path.
C) A zero bandwidth tunnel is not a valid option.
D) The bandwidth statement creates a "hard" reservation on the link.
E) Tunnel links inherit IGP metrics by default unless overridden.