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 drug has longest Half Life 
Select and explain. 
A. Amiodarone, B. Quinidine, C. Diltiazem, D. Procainamide
A: Amiodarone
Answer: A: Amiodarone 
Explanation: Refer kDT 7/e p 533 Amiodarone has the longest half-lifeof all the antiarrhythmics (weeks).