The dispersed phase and dispersion medium of fog respectively are:

The dispersed phase is a liquid that is suspended in the form of fine droplets in a continuous phase.

The dispersed medium is the medium in which the colloidal particles are distributed.

Example: In starch solution, starch acts as the dispersed phase and water as the dispersion medium.

The dispersed phase and dispersed medium, basically both of them are categorized as solid, liquid and gas according to their physical states.

In case of fog liquid particles are suspended in the air which is gas. So the dispersed phase is liquid and dispersion medium is the Gas.

Hence, correct answer is option C: Liquid,Gas