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': 'As per the recent guidelines of Resuscitation what to be done if asystole is not responding to two consecutive doses of epinephrine:- \nSelect and explain. \nA. Vasopressin is the second line drug, B. Defibrillation with 200J, C. Another dose of epinephrine, D. Atropine should be given', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Most common electrical mechanism for cardiac arrest isasystole,as recorded at initial contact in45-50% of cases.Previously VF was thought to be the common mechanism, but its its incidence has now been decreasing.', 'role': 'assistant'}]