A) benign growth on mucous lining of nasal cavity
B) inflammation of bronchi and bronchioles
C) proliferation of fibrous tissues and damage of the alveolar walls
D) reduction in the secretion of surfactants by pneumocytes.
Correct Answer: B
Solution :
Asthma is a difficulty in breathing causing wheezing due to inflammation of bronchi and bronchioles. It can be due to increasing air born allergens and pollutants. Asthma is an allergic condition. Many people in urban areas are suffering from this respiratory disorder.
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