In science class, Jonathan added a small amount of sand to a beaker of water. He stirred it vigorously so that all the sand swirled around in the water. Jonathan then claimed to his classmates that he had made a solution. However, his teacher told Jonathan that he was mistaken. Why was the teacher correct? Jonathan made a compound, not a mixture

A solid substance cannot dissolve in water to form a solution

The sand will eventually settle to the bottom and will not dissolve in the water

A chemical reaction did not take place, so a solution was not formed