Which one of the following statement regarding photochemical smog is not correct?

• A

  Photochemical smog is formed through photochemical reaction involving solar energy.

• B

  Photochemical smog does not cause irritation in eyes and throat.

• C

  Carbon monoxide does not play any role in photochemical smog fraction.

• D

  Photochemical smog is an oxidizing agent in character.