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: Pharmacology
[{'content': 'Metastatic calcification is most commonly seen in (NOTRELATED) \nSelect and explain. \nA. Cornea, B. Extensor tendon, C. Lungs, D. Renal tubules', 'role': 'user'}, {'content': 'Answer: D \nExplanation: .', 'role': 'assistant'}]