Surface Chemistry

\(\text { Match the following. }\)

$$ \begin{array}{llll} \hline & \text { List-I (Type of colloid) } & & \text { List-II (Example) } \\ \hline \text { A } & \text { Sol } & \text { I } & \text { Cloud } \\ \hline \text { B } & \text { Foam } & \text { II } & \text { Whipped cream } \\ \hline \text { C } & \text { Gel } & \text { III } & \text { Paint } \\ \hline \text { D } & \text { Aerosol } & \text { IV } & \text { Butter } \\ \hline \end{array} $$

The correct answer is