Answer: C. Fog
Step-by-step explanation:
Fog is a aerosol that is visible in nature. It is made from the small water droplets and ice crystals that are suspended in the air atmosphere and near the surface of earth. It can be considered as a type of cloud that is low lying. The formation of fog happens when the temperature reaches the dew point. The fog formation is influenced by the nearby bodies of water, wind conditions and topography.