Answer
$F_A = F_B = F_C$
Work Step by Step
According to Archimedes' Principle, the buoyant force on an object in a liquid is equal to the weight of the liquid that is displaced by the object. Since all three objects have the same volume, they displace the same volume of liquid.
Therefore, the buoyant forces on these three objects are equal:
$F_A = F_B = F_C$