Question #8757

Which is less harmful emission elements after convert by catalytic converter

A.
Co<sub>2</sub> + Hc + H<sub>2</sub>O
B.
NOx + Co<sub>2</sub> + Pm
C.
H<sub>2</sub>0 + CO<sub>2</sub> + Nitrogen
D.
Pb + CO<sub>2</sub> + Nox
Explanation

No explanation provided.