This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Applied Aspects and Respiratory Adjustments, Subject name: Physiology
Thickening of respiratory membrane is seen in - 
Select and explain. 
A. Bronchiectasis, B. Pneumonia, C. Good-pasture syndrome, D. HSP
B: Pneumonia
Answer: B: Pneumonia 
Explanation: Ans. is 'b' i.e., Pneumonia o Thickening of respiratory membrane is caused by: -i) Pneumonia ii) Emphysemiii) TBiv) Cystic fibrosisv) Lung carcinoma