In the exhaust fumes from a car engine, carbon monoxide, CO, nitrogen monoxide, NO, and sulfur dioxide, $\text{SO}_2$, may all be found. Which atmospheric reaction involving these compounds takes place?
- ACO is spontaneously oxidised to $\text{CO}_2$
- B$\text{NO}_2$ is reduced to NO by CO
- C$\text{NO}_2$ is reduced to NO by $\text{SO}_2$
- D$\text{SO}_2$ is oxidised to $\text{SO}_3$ by $\text{CO}_2$