Question 1998 Deck Safety

The correct answer is C) center of buoyancy. The stability of a vessel is determined by the relationship between the center of gravity and the center of buoyancy. The center of buoyancy is the point at which the upward buoyant force acts, and it is this relationship between the center of gravity and the center of buoyancy that determines the vessel's stability. The other answer choices are incorrect because the keel (A) is not directly related to stability, the center of flotation (B) is the point at which the vessel appears to float, and water depth (D) does not directly affect the stability of the vessel.