What does it mean for a substance to dissolve?

A. It drops into the solvent.

B. It floats in the solvent.

C. It is absorbed into the solvent.

D. It gets bigger in the solvent.

C. The substance is absorbed into the solvent

The answer is: C. It is absorbed into the solvent.

Explanation:

This is because a substance is only soluble in a liquid when it completely disappears when added to the liquid after some agitation.

For example Salt and water. If you add salt to water and stir it for a few seconds, the salt completely disappears.