A solution which contains maximum possible amount of solute at any given temperature is called a:
A. saturated solution
B. supersaturated solution
C. dilute solution
D. unsaturated solution

Hint: A solution is a liquid compound that consists of two components that make up the composition of solution. One component is the solute that is less in amount. This is dissolved in another component that is solvent, which is more in amount. The amount of solute affects the nature of any solution, making it concentrated or dilute.

Complete answer:
A solution is a substance that is made up of two components, a solute and a solvent. A solute is that part which is in less quantity, while a solvent is in large quantity. Usually a solute is dissolved into a solvent.
A solution that consists of the maximum possible amount of a solute at any given temperature is called a saturated solution. A saturated solution is formed when no more solute can be added into the solution.
An example of a saturated solution can be sugar dissolved in water, until no more sugar can be dissolved.
Hence, a solution which contains the maximum possible amount of solute at any given temperature is called a saturated solution.

So option A is correct.

Note:
A supersaturated solution is the solution in which solute is added up beyond the maximum capacity of adding the solute. A dilute solution is the solution in which the solute particles are in lesser amounts. Unsaturated solution is the solution in which the solute is in lesser amount than its saturation point.