The correct option is C Absorption of long wave radiations from earth
Greenhouse gases are the gases which contribute to global warming. Some of the primary greenhouse gases are water vapour, carbon dioxide, methane, nitrous oxide, and ozone. When the concentration of these gases increases in the atmosphere they form a layer which traps the solar radiation. Due to the trapped radiation, the temperature of the earth increases which leads to global warming. So the correct answer is option C.