This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abdominal Injury, Subject name: Surgery
[{'content': 'Commonest injury in blunt abdominal trauma - \nSelect and explain. \nA. Kidney, B. Liver, C. Bladder, D. Spleen', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'c' i.e.. Spleen", 'role': 'assistant'}]