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
Sun ray appearance is seen in – a) Osteosarcomab) Ewing sarcomac) Osteoclastomad) Multiple myeloma 
Select and explain. 
A. ac, B. ab, C. ad, D. bc
B: ab
Answer: B: ab 
Explanation: Sunray appearance is classically seen in osteosarcoma. It may also occur in metastases, Ewings sarcoma, Haemangioma, Meningioma and tuberculosis.