The correct option is A saturated
∙ A solution is made by adding some solute to a solvent.
∙ If the solution contains a very small amount of solute, it is known as a dilute solution.
∙ The point at which no more solute can be dissolved in the solvent, it is said to be saturated.
∙ Below this concentration, the solution is called unsaturated and above this concentration, it is called supersaturated.