A gasoline fuel tank vent on a small passenger vessel should terminate __________.

Correct Answer: Option B — On the hull exterior as high above the waterline as practicable and remote from any hull opening

46 CFR 25.40-1 requires fuel tank vents to terminate on the hull exterior, high above the waterline, and well away from any hull openings. This placement prevents water ingress and ensures that flammable vapors are safely dispersed into the atmosphere, minimizing the risk of ignition near the vessel's interior spaces.