This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous System, Subject name: Surgery
[{'content': 'A man falling from a height directly hitting his pelvis to ground and presented with urinary; incontinence. The probable injury he sustained is \nSelect and explain. \nA. Cervical spine injury, B. Pelvic hematoma, C. Blunt injury abdomen, D. Injury to loin region', 'role': 'user'}, {'content': 'Answer: B \nExplanation: (B) Pelvic hematoma', 'role': 'assistant'}]