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
Treatment of strangulated hernia is: 
Select and explain. 
A. Observation, B. Immediate surgery, C. Manual reduction, D. Analgesics
B: Immediate surgery
Answer: B: Immediate surgery 
Explanation: Ans: b (Immediate surgery)Ref: Bailey & Love, 24th ed, p. 1279 & 23rd ed, p. 1150