When Comparing Types of Catalytic Technology Used by Diesel Engines

When comparing types of catalytic technology used by diesel engines and spark-ignition engines, which of the following catalyst technologies reduces just NOx (oxides of nitrogen) ?

A) Two-way (oxidation) catalytic converter"
B) Three-way catalytic converter"
C) DOC (diesel oxidation catalyst)
D) Selective catalytic reduction using liquid (SCR-L) "

Correct Answer:

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