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': 'Which of the following help in distinguishing an osseous neoplasm and a cyst on an X-ray \nSelect and explain. \nA. Size, B. Shape, C. Location, D. Peripheral bone formation', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]