Question 737 Rules of the Road

The correct answer is D) None of the above. The illustration D023RR does not depict the arc of visibility of any of the lights mentioned in the answer choices (green sidelight, stern light, or white masthead light). The arc labeled "D" in the illustration represents the arc of visibility of a red sidelight, not the lights listed in the answer choices. Therefore, none of the answer options correctly identify the light represented by the "D" label in the illustration.