Three-way catalytic converter is used in vehicle to reduce1. Unburnt Hydrocarbon2. Carbon Monoxide3. Nitric Oxide4. Sulphur dioxideSelect the correct answer using the code given below:

Three-way catalytic converter is used in vehicle to reduce1. Unburnt H

1.	Three-way catalytic converter is used in vehicle to reduce1. Unburnt Hydrocarbon2. Carbon Monoxide3. Nitric Oxide4. Sulphur dioxideSelect the correct answer using the code given below:
A.	Only 1, 2, and 3
B.	Only 1, 3 and 4
C.	Only 2, 3 and 4
D.	Only 3 and 4
Answer» B. Only 1, 3 and 4