This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gastrointestinal Radiology, Subject name: Radiology
[{'content': "Bear claw's sign is seen in \nSelect and explain. \nA. IgA nephropathy, B. Glomerular nephritis, C. Liver lacerations, D. Xanthogranulomatous pyelonephritis", 'role': 'user'}, {'content': "Answer: C \nExplanation: Bear claw sign is seen in liver trauma on CECT Note- Bear paw's sign- xanthogranulomatous pyelonephritis.", 'role': 'assistant'}]