Answer:
C) has an irritating odor and is colorless
Step-by-step explanation:
Sulfur dioxide is a colorless gas with a strong, irritating odor. It is a secondary air pollutant, meaning that it is not emitted directly into the air but is produced when primary pollutants react with other substances in the atmosphere. Sulfur dioxide can create a reddish-brown haze in the sky, but it is generally considered to be relatively harmless to the environment.