Correct Answer: liquid in a liquid

Solution : The correct option is liquid in a liquid.

An emulsion is a colloid composed of one liquid dispersed in liquid. It is a form of colloidal dispersion in which the dispersed phase as well as the dispersion medium are both liquids. Emulsions are classified into two types: oil-in-water emulsions and water-in-oil emulsions. The oil is the dispersed phase and the water is the dispersion medium in an oil-in-water emulsion. The dispersed phase in a water-in-oil emulsion is water, and the dispersion medium is oil.