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
Class III anti arrythmic drug is: 
Select and explain. 
A. Amiodarone, B. Phenytoin, C. Propafenone, D. Pindolol
A: Amiodarone
Answer: A: Amiodarone 
Explanation: None