Combustion of candle is a

Answer: Option C

Combustion of candles is a exothermic change.
When you light a candle, the heat of the flame melts the wax near the wick. This liquid wax is then drawn up the wick by capillary action. The heat of the flame vaporizes the liquid wax, and starts to break down the hydrocarbons into molecules of hydrogen and carbon.
Exothermic change is a thermodynamic process or reaction that releases energy from the system to its surroundings, usually in the form of heat, but also in a form of light.