Answer is: 1) unsaturated.
For example, solubility of potassium chlorate (KClO₃) at 100 grams of water at 80°C is 37.5 g, that means that all 37.5 g is completely dissolves, this is the saturated solution.
If we add 10 grams of potassium chlorate in 100 grams of water at 80°C, there is less solute than the saturated solution, so this is unsaturated solution.
