If Equal Volumes of Differently Colored Solutions Are Poured into Opposite

Multiple Choice

If equal volumes of differently colored solutions are poured into opposite sides of a shallow pool of water, what will be the result at equilibrium?

A) Each solution will be uniformly distributed in the side of the pool into which it was poured.
B) The solutions will be uniformly distributed throughout the pool.
C) Each solution will have moved against its concentration gradient.
D) The concentration of each solution will be higher in one side of the pool than in the other.
E) The solutions will have sunk to the bottom of the pool and remained separate.