Which towing equipment can be used to prevent the tripping of a tug?

Correct Answer: Option C — Gob ropes

A gob rope, or 'stopper,' is used to secure the towline to the deck of the tug, effectively pulling the towline toward the centerline. This prevents the towline from moving too far to the side, which could create a dangerous heeling moment and cause the tug to trip and capsize.