In an experiment on osmosis, red blood cells were immersed in a salt solution for two hours. The micrographs show the appearance of these cells before and after immersion in the salt solution.

The salt solution was hypertonic and entered the red blood cells.

The salt solution was hypotonic and disrupted the membranes of the red blood cells.

The salt solution was hypertonic and water moved into it from the red blood cells.

The salt solution was hypotonic and mineral salts were lost from the red blood cells.