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: Radiology
[{'content': "The radiological feature of Pindhorg's tumour is: \nSelect and explain. \nA. Onion-peel appearance, B. Sun burst appearance, C. Driven snow appearance, D. Cherry blossom appearance", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. Driven snow appearance', 'role': 'assistant'}]