Answer: Option (B) is the correct answer.
Step-by-step explanation:
According to collision theory it is known that more is the number of collisions between the atoms more is the rate of a reaction.
Therefore, the speed or the frequency and the energy with which atoms are colliding with each other is important in determining the rate of a reaction.
Thus, we can conclude that the rate at which a solid solute dissolves in a liquid solvent is determined by the frequency and energy of the collisions between the solute and solvent particles.