Answer: Option (d) is the correct answer.
Step-by-step explanation:
Amount which is present in less quantity into the solution is known as a solute and the amount which is present in greater quantity into the solution is known as solvent.
Therefore, when salt is dissolved in water then salt is the solute and water is the solvent. Further, when 2% alcohol is added to the same salt water then both salt and alcohol act as solute.
Therefore, we can conclude that in the given situation both alcohol and salt are the solutes in the new solution.