The correct option is C A is true but R is false.
In rainfall, the condensation of water vapour in air happens above freezing point, thereby forming liquid water droplets. But, when this condensation process occurs below the freezing point, in this case, instead of water, you will get ice crystals. These ice crystals fall on the surface of the Earth as flakes of snow. Snowfall is common in the mountains and at higher latitudes because the temperature in such areas is low, allowing for condensation below freezing point.