Question 822 Rules of the Road

The correct answer is A) sailing vessel. The lights shown in illustration D047RR indicate the navigation lights of a sailing vessel underway at night. According to the International and Inland Navigation Rules, a sailing vessel underway at night must display the following lights: a white light at the stern, a red light on the port (left) side, and a green light on the starboard (right) side. These are the three lights shown in the illustration, which is the proper configuration for a sailing vessel. The other answer choices (B, C, and D) do not match the lighting configuration displayed in the illustration, and therefore are incorrect.