The correct option is B Solute – Dispersed phase, Solvent – Dispersion medium
In a colloidal dispersion, one substance is dispersed as very fine particles (dispersed phase) in another substance (dispersion medium).
Comparing these components of colloid to that of a solution or suspension, the correct pair is:
solute – dispersed phase – present in less quantity
solvent – dispersion medium – present in large quantity.
In the case of fog, a colloid, solid particles are dispersed in air. Here, dispersed phase is solid and dispersion medium is gas.