Answer:
Emphysema.
Explanation:
COPD (Chronic obstructive pulmonary disease) is the medical condition that causes inflammation in lungs and makes breathing problematic. Chronic bronchitis and Emphysema are the two main conditions included in COPD.
Emphysema is the extreme lung condition of COPD that causes the breath shortness. The alveoli are completely damaged and also reduces the amount of oxygen in the body. The emphysema condition causes the decrease in the lung surface area and reduces the amount of oxygen.
Thus, the answer is emphysema.
