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': 'Metastatic calcification is most often seen in ? \nSelect and explain. \nA. Lymphnodes, B. Lungs, C. Spleen, D. Liver', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b i.e., Lung", 'role': 'assistant'}]