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
Metastatic calcification is most commonly seen in (NOTRELATED) 
Select and explain. 
A. Cornea, B. Extensor tendon, C. Lungs, D. Renal tubules
D: Renal tubules
Answer: D: Renal tubules 
Explanation: .