Equal Amounts of Two Solutes,A and B,are Placed into the Same

Multiple Choice

Equal amounts of two solutes,A and B,are placed into the same beaker of water at the same time.Solute A reaches diffusion equilibrium faster than solute B.What is the most likely explanation for this observation?

A) The temperature was greater for solute A than solute B.
B) The concentration gradient for A was greater than B.
C) Solute A is smaller than solute B.
D) Solute A traveled a shorter distance than solute B.
E) Solute B is more soluble in water than solute A.