Final answer:
A steel ball bearing sinks in water because its density is higher than that of water, while a large ship floats because it displaces a greater volume of water.
Step-by-step explanation:
A steel ball bearing sinks in water because its density is higher than that of water, causing it to be heavier than the water it displaces. On the other hand, a large ship floats because it displaces a greater volume of water, which creates an upward force called buoyancy that counteracts the weight of the ship.
The correct answer is B. displaces. A ship displaces a large amount of water, which helps it float due to the principle of buoyancy. A large ship floats because it displaces a volume of water equal to its weight. This is based on Archimedes' principle, which states that a body submerged in a fluid experiences an upward buoyant force equal to the weight of the fluid it displaces. In the case of a ship, the weight of the water it displaces is equal to the weight of the ship, allowing it to float.