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': 'Sun ray appearance is seen in – a) Osteosarcomab) Ewing sarcomac) Osteoclastomad) Multiple myeloma \nSelect and explain. \nA. ac, B. ab, C. ad, D. bc', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Sunray appearance is classically seen in osteosarcoma. It may also occur in metastases, Ewings sarcoma, Haemangioma, Meningioma and tuberculosis.', 'role': 'assistant'}]