Answer
Choice D.
Work Step by Step
An ocean liner is not a solid block of steel. It is hollowed out, and its hull can displace an amount of water whose weight is equal to that of the ship and everything in it.
In other words, if you imagine closing off the top of the ship with a massless membrane, the overall average density of the ship, mass/volume, is less than that of water. The ocean liner floats.
