Question 807 Rules of the Road

The correct answer is C) a diamond shape. According to the International and Inland Navigation Rules, a vessel with a tow over 200 meters in length must display a diamond shape during the day, as this indicates the presence of a vessel restricted in its ability to maneuver due to the length of its tow. The diamond shape is a recognized visual signal that helps other vessels in the area be aware of the vessel's limited maneuverability and take appropriate actions to avoid a collision. The other options are incorrect because they do not represent the proper daylight signal for a vessel with a tow over 200 meters in length. A black ball, one cone apex upward, or two cones with apexes together are used to indicate different types of vessels or situations, but they do not apply to the specific scenario described in the question.