Question 734 Rules of the Road

The correct answer is C) yellow light. According to the Navigation Rules, both the International and Inland Rules state that a towing light must be a yellow light. This yellow light is required to be displayed on the aftermost vessel of a towing arrangement, in addition to the standard navigational lights. The yellow color helps to distinguish the towing vessel from other vessels in the area. The other answer choices are incorrect because white, blue, and red lights are not the designated colors for towing lights under the Navigation Rules.