Answer: Option (C) is the correct answer.
Explanation:
Solubility of solute depends on temperature because on increasing the temperature solute particles colloid more frequently. As a result, there is increase in rate of reaction, that is, increase in solubility of solute into the solution.
Also, the nature of solvent is important in determining its solubility because a polar solute will only dissolve in a polar solvent whereas a non-polar solute will dissolve only in non-polar solvent.
Thus, we can conclude that the solubility of a solute depends on the nature of the solute and the temperature.