This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory, Subject name: Medicine
Alpha antitrypsin deficiency causes: 
Select and explain. 
A. Centrilobular emphysema, B. Pan acinar emphysema, C. Lung cyst, D. Bronchiectasis
B: Pan acinar emphysema
Answer: B: Pan acinar emphysema 
Explanation: Ans: bRef: Robbins, 3rd ed, p. 718, 719