Asthma may be attributed to (a) bacterial infection of the lungs (b) allergic reaction of the mast cell in the lungs (c) inflammation of the trachea (d) accumulation of fluid in the lungs
Option B. Explanation:- Asthma may be attributed to allergic reaction of the mast cell in the lungs. Symptoms:- Difficulty in breathing due to bronchi and bronchioles inflammation.
