The Lake Carriers Association and the Canadian Shipowners 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 B — red or magenta figures over a segmented course line track

Official Great Lakes navigation charts publish recommended separation routes prescribed by the Lake Carriers and Canadian Shipowners Associations utilizing distinct red or magenta figures placed directly over segmented course line tracks for clarity.