Answer:
D) it is not possible to dissolve more solute into the solution
Explanation:
There are primarily three types of solutions: saturated solution, unsaturated solution and supersaturated solution.
A "saturated solution" is a solution in which you can dissolve a lot more solute. It has very little solute in it.
An "unsaturated solution" is a solution in which you can dissolve a little more solute although it has a lot of solute in it.
A "supersaturated solution" is a solution in which you cannot dissolve any more solute. It has the maximum amount of solute in it. This makes choice D as the answer.