A disorder characterized by the obstruction of respiratory passages and loss of bronchial elasticity is​

A) ​bronchitis.
B) ​allergy.
C) ​emphysema.
D) ​bulimia.

Respiratory Passages

The airways in the human body through which air flows in and out of the lungs, including the nose, throat, and bronchi.

Bronchial Elasticity

The ability of the bronchial tubes in the lungs to stretch and return to their original size, important for healthy lung function and air flow.

Emphysema

A chronic lung disease in which scar tissue and mucus obstruct the respiratory passages.