Concept:When two air masses with different temperatures meet, they produce cyclonic or frontal rainfall.
Explanation:Cyclonic rainfall occurs when warm, moist air meets cold, dry air.
The warm air is lighter, so it rises over the cold, denser air.
As the warm air rises, it cools and condenses, forming clouds.
This process leads to rainfall along the frontal zone.
This type of rain is common near coasts and in temperate regions.
Answer:C. cyclonic rainfall.