This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Pharmacology
Which of the following anti-arrhythmic agents does not belongs to class Ic? 
Select and explain. 
A. Tocainide, B. Encainide, C. Flecainide, D. Propafenone
A: Tocainide
Answer: A: Tocainide 
Explanation: class 1a - Quinidine Ajmaline Procainamide Disopyramide CLASS 1B - Lidocaine Phenytoin Mexiletine Tocainide Class 1c- Encainide Flecainide Propafenone Moricizine Tocainide belongs to Ib drug. REF Essentials of Pharmacology KD Tripathi.8th ed.