This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
Good-pasture syndrome is not characterized by ? 
Select and explain. 
A. Anti GBM, B. Crescents, C. Pulmonary hemorrhage, D. Diffuse alveolar damage
D: Diffuse alveolar damage
Answer: D: Diffuse alveolar damage 
Explanation: Ans. is 'd' i.e., Diffuse alveolar damage There is focal necrosis (not diffuse) of alveolar walls.