Answer:
A. Substance A is less soluble in water than Substance B.
Step-by-step explanation:
Solubility: The term "solubility" is described as a specific property determining the capability of a particular solute, substance to get dissolve in a "solvent". Thus, solubility is being measured with respect to the "maximum amount" of a specific solute that is dissolved or mixed in a solvent at "equilibrium". After the given process, the resultant solution is referred to as a saturated solution.
In the question above, the correct answer is option-A.