This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fluid & Electrolyte, Subject name: Medicine
Aprindine is a ....... antiarrhythmic drugs: 
Select and explain. 
A. IA, B. IB, C. IC, D. IV
B: IB
Answer: B: IB 
Explanation: Ans. B. IBAntiarrhythmic DrugsClass IaClass IbClass Ic1 Double Quarter Pounderwith Lettuce, Mayo & Tomatoand More Fries Please!DisopyramideLidocaineMoricizineQuinidineMexiletineFlecainideProcainamideTocainidePropefenoneClass IIClass IIIClass IVBeta blockers? LolThis is SADI and V in Class IV?PropranololSotalolDiltiazemAtenololAmiodaroneVerapamilMetoprololDofelitide