What is the greatest danger of an overriding tow?

Correct Answer: Option B — Collision between the tow and the stern of the towing vessel

An overriding tow occurs when the towed vessel gains speed and overtakes the towing vessel. The greatest danger is a collision between the tow and the stern of the towing vessel, which can cause catastrophic damage to the tug's propulsion, steering, or the towing gear itself.