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How many degrees of white light must a motor-driven vessel longer than 12 meters display?
180 degrees
360 degrees
225 degrees forward and 135 degrees aft
90 degrees
The correct answer is: 225 degrees forward and 135 degrees aft
A motor-driven vessel longer than 12 meters must display 225 degrees of white light forward and 135 degrees of white light aft to indicate its size and direction to other vessels. Option A of displaying only 180 degrees of light would not provide enough visibility for other vessels to determine the vessel's size. Option B of displaying 360 degrees of light would be unnecessary and potentially dangerous as it could cause confusion for other vessels. Option D of only displaying 90 degrees of light would not provide enough visibility and could be mistaken for a smaller vessel. Therefore, the correct answer is option C, which displays the appropriate degrees of light for a motor-driven vessel longer than 12 meters.