The Lake Carriers Association and the Canadian Ship owners Association prescribe separation routes for upbound and downbound vessels on the Great Lakes. The recommended courses for these routes are shown on the Great Lakes Charts in the form of __________.

Correct Answer: Option D — red or magenta figures over a segmented course line track

Great Lakes navigation standards and routing guidelines prescribed by the Lake Carriers Association depict recommended upbound and downbound traffic separation routes on charts using red or magenta figures overlaid on segmented course line tracks.