Question 606 Rules of the Road

The correct answer is B) fishing vessel. The lights shown in illustration D070RR are the required navigation lights for fishing vessels under both the International and Inland Navigation Rules. Fishing vessels are required to display these lights to indicate their presence and activity to other vessels, which helps prevent collisions at sea. The other answer choices are incorrect because motorboats, sailboats, and pilot boats have different navigation light requirements that do not match the illustration.