A three way catalytic converter

A)
burns fuel vapaour gasses
B)
recirculates exhaust gasses
C)
reduces N2, H₂O, and CO₂ emission levels
D)
removes CO, HC, and NO₂ from the exhaust gasses passing through it

Correct Answer : Option (D) :   removes CO, HC, and NO₂ from the exhaust gasses passing through it