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
What is the strength of shock given to below victim of cardiac arrest with shockable rhythm: 
Select and explain. 
A. 200 J asynchronous Shock, B. 300 AC shock, C. 200 Syn. Shock, D. 300 J Syn. Shock
A: 200 J asynchronous Shock
Answer: A: 200 J asynchronous Shock 
Explanation: It should be between 120-200 J asynchronized shock.