BOTH INTERNATIONAL & INLAND Which vessel would display the lights shown in illustration D079RR below?

Correct Answer: Option C — vessel towing astern

Rule 24(a) mandates that a power-driven vessel towing astern must display two masthead lights in a vertical line. If the tow length exceeds 200 meters, three lights are required. The configuration of two vertical masthead lights specifically identifies a vessel engaged in towing astern.