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: Pharmacology
[{'content': 'Which of the following anti–arrhythmic agents does not belong to class Ic ? \nSelect and explain. \nA. Tocainide, B. Encainide, C. Flecainide, D. Propafenone', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]