Pick out the wrong statement?

A. Catalytic converter is fitted in automobiles to reduce carbon monoxide concentration in
exhaust emissions
B. Inhalation of pollutant carbon monoxide results in death by asphyxiation
C. Sulphur dioxide is the main pollutant emitted from the exhaust of petrol driven automobiles
D. Decomposition of plants containing chlorophyll is a natural source of carbon monoxide in
atmosphere