Correct Answer: Cheese

Solution : The answer is Cheese.

Gels are a form of colloidal solution with a liquid-dispersed phase and a solid-dispersed medium. They are usually semi-solid and jelly-like in substance. Curdling milk separates the liquid whey from the solid curds, which is how cheese is formed.

After that, the curds are crushed and matured to make cheese. Because the liquid whey is spread throughout the solid curds, cheese is a gel. The alternatives are not gels.