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
Which of the following drugs is a class III antiarrhythmic agent ? 
Select and explain. 
A. Quinidine, B. Amiodarone, C. Propranolol, D. Lignocaine
B: Amiodarone
Answer: B: Amiodarone 
Explanation: None