The correct option is A oxidation reaction
Combustion of a fuel is the oxidation reaction, it includes a hydrocarbon and oxygen as the reactants and always produces carbon dioxide and water as products.
CxHy+O2(g)→CO2(g)+H2O(g)
Fuel combustion also known as burning fuel is the process by which a fuel is consumed in an exothermic chemical reaction that releases a great deal of heat and light.