This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
[{'content': 'The feature of shock lung is \nSelect and explain. \nA. Diffuse alveolar damage, B. Usual interstitial penumonitis, C. Organizing pneumonia, D. Bronchilolitis', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ref: Harrison's 18/e p2205, 17/e p1680", 'role': 'assistant'}]