Answer
We can rank the densities of the objects in order, from largest to smallest: A, C, B
Work Step by Step
The fraction of an object's volume that is submerged in a liquid depends on the density of the object. If an object has a higher density, then a higher fraction of the volume will be submerged.
Object A has the highest fraction of its volume submerged, so object A has the highest density.
Object B has the smallest fraction of its volume submerged, so object B has the smallest density.
We can rank the densities of the objects in order, from largest to smallest: A, C, B