Due to increasing air-borne allergens and pollutants, many people in urban areas are…

Biology · NEET · NTA ExamsBreathing and Exchange of Gases

Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory disorder cuasing wheezing due to
  1. benign growth on mucous lining of nasal cavity
  2. inflammation of bronchi and bronchioles
  3. proliferation of fibrous tissues and damage of the alveolar walls
  4. reduction in the secretion of surfactants by pneumocytes

Answer

(B) inflammation of bronchi and bronchioles

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