Answer : The sugar is the solute and the tea (mostly water) is the solvent.
Explanation :
As we know that a simple solution is formed when the two substances are evenly mixed together. The two substances are solute and solvent.
Solute : It is a substance that is present in the solution in the small amount. Or we can say that a substance that is dissolved in the other substance.
Solvent : It is a substance that is present in the solution in the large amount. Or we can say that a substance in which the solute is dissolved.
As per question, in the chemical terms, the sugar is the solute and the tea (mostly water) is the solvent.
Hence, the sugar is the solute and the tea (mostly water) is the solvent.