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: Surgery
[{'content': 'What complication should one expect when PCNL is done through 11th intercostal space? \nSelect and explain. \nA. Hematuria, B. Hydrothorax, C. Injury to colon, D. Remnant fragments', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]