Refer to the exhibit. Which statement indicates a cause for Tunnel0’s connection failure?
A. The tunnel destination interface is flapping, which causes the tunnel to go up and down.
B. The tunnel source interface is in an up/down state and the tunnel destination is recursively routing as a result.
C. The tunnel is configured with the wrong encapsulation.
D. The tunnel destination is intermittently reachable via multiple routing protocols.
