This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiopulmonary Cerebral Resuscitation, Subject name: Anaesthesia
[{'content': 'What is the strength of shock given to below victim of cardiac arrest with shockable rhythm: \nSelect and explain. \nA. 200 J asynchronous Shock, B. 300 AC shock, C. 200 Syn. Shock, D. 300 J Syn. Shock', 'role': 'user'}, {'content': 'Answer: A \nExplanation: It should be between 120-200 J asynchronized shock.', 'role': 'assistant'}]