According to Code of Federal Regulations 33, a vessel operating upon the Great Lakes shall __________.

Correct Answer: Option B — not discharge any garbage into these waters

33 CFR 151.66 prohibits the discharge of any garbage into the navigable waters of the United States, including the Great Lakes. This regulation enforces strict environmental protection standards, ensuring that vessels maintain zero-discharge policies for solid waste to preserve the ecological integrity of these freshwater systems.