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': 'TURP was done in an old patient of BHP, after which he developed altered sensorium cause is \nSelect and explain. \nA. Hypernatremia, B. Hyponatremia, C. Hypokalemia, D. Hyperkalemia', 'role': 'user'}, {'content': 'Answer: B \nExplanation: After dilution hyponatremia patient can devolop altered sensorium.', 'role': 'assistant'}]