The protein $$\alpha 1$$- antitrypsin is used to treat the disease.
The correct option is D Emphysema
$$\alpha$$-1 antitrypsin deficiency, an autosomal codominant hereditary disorder in which a deficiency of $$\alpha$$-1 antitrypsin leads to a chronic uninhibited tissue breakdown. This causes the degradation especially of lung tissue and eventually leads to characteristic manifestations of pulmonary emphysema.
So, the correct answer option is D.