What is the most likely cause of the responses on lines 10 and 11 of the output below?

The device at hop 10 silently drops UDP packets with a high destination port.

The device at hop 10 is down and not forwarding any requests at all.

The host running the tracer utility lost its network connection during the scan

The devices at hops 10 and II did not return an "ICMP TTL Exceeded in Transit" message.