Which Statement Best Describes the Equilibrium Condition Shown in the Illustration

Multiple Choice

Which statement best describes the equilibrium condition shown in the illustration below?

A) A sample taken from anywhere in the container will have the same concentration of solute.
B) Eventually, gravity will move most solute particles to the bottom of the container.
C) The molecular motion that initially distributed the solute has ceased once the equilibrium was established.
D) None of the above statements describe the equilibrium shown in the illustration.