BOTH INTERNATIONAL & INLAND A power-driven vessel with a 150-meter stern tow is required to display which lights?

Correct Answer: Option D — a towing light above the stern light

Rule 24(c) requires a power-driven vessel towing astern to display a towing light in a vertical line above the stern light. This configuration identifies the vessel as a tug and indicates the presence of a towline, alerting other vessels to maintain a safe distance and avoid the tow.