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: Anaesthesia
For Foreign bodies are retained in the larynx causing choking, first line of management is 
Select and explain. 
A. Airway inseion, B. Hemilich manouvere, C. Hemilich valve, D. Tracheostomy
B: Hemilich manouvere
Answer: B: Hemilich manouvere 
Explanation: Hemilich manouvere