This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Which of the following is not a common site for mata static calcification \nSelect and explain. \nA. Gastric mucosa, B. Kidney, C. Parathyroid, D. Lung', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Metastatic calcification may occur widely through out the body but principally affects Interstitial tissues of gastric mucosa Kidney Lungs Systemic aeries Pulmonary veins', 'role': 'assistant'}]