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Due to increasing air-borne allergens a ...

Due to increasing air-borne allergens a pollutants, many people in urban areas a suffering from respiratory disorder cause wheezing due to:

A

Benign growth on mucous and bronchioles

B

Inflarmmation of bronchi and bronchioles

C

Proliferation of fibrous tissues and damage of the alveolr walls

D

Reduction in the secretion of surfactants by pneumocytes

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The correct Answer is:
B
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