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
[{'content': 'Gray hepatization of lungs is seen on day ? \nSelect and explain. \nA. 1, B. 3-Feb, C. 5-Mar, D. 7-May', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. is \'d\' i.e., 5-7 All 4 phases may be seen in different pas of the same lung (1) Congestion (1-2 days) (2) Red hepatization (2"d-4\'h day) (3) Gray hepatization (5\'h-8\'h day) (4) Resolution (8th-9th day)', 'role': 'assistant'}]