This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Hernia, Subject name: Surgery
[{'content': 'Treatment of strangulated hernia is: \nSelect and explain. \nA. Observation, B. Immediate surgery, C. Manual reduction, D. Analgesics', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans: b (Immediate surgery)Ref: Bailey & Love, 24th ed, p. 1279 & 23rd ed, p. 1150', 'role': 'assistant'}]