This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
Emphysema is due to: 
Select and explain. 
A. Decreased surface area, B. Increased solubility, C. Increased concentration gradient, D. All
A: Decreased surface area
Answer: A: Decreased surface area 
Explanation: Emphysema is due to decreased surface are It is due to alfa 1 anti trypsin deficiency due to which membrane gets destroyed and surface is reduced