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': 'Dystrophic calcification occur in all except -( \nSelect and explain. \nA. Rheumatic hea disease, B. Lymph node, C. Normal kidney, D. Aneurysm', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Normal kidney", 'role': 'assistant'}]