The correct answer is C. Sulphur dioxide (SO₂) and nitrogen oxides (NOx) are the primary atmospheric pollutants that cause acid rain. They react with water, oxygen, and other chemicals to form sulfuric and nitric acids. These pollutants are mainly emitted from the burning of fossil fuels by power plants, vehicles, and industrial facilities. Ozone, Ammonia, and Carbon monoxide are also atmospheric pollutants, but SO₂ and NOx are the principal precursors of acid rain.