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
The anti–arrhythmic drug of choice in most of the cases of acute paroxysmal supraventricular tachycardia is: 
Select and explain. 
A. Adenosine, B. Amiodarone, C. Propranolol, D. Quinidine
A: Adenosine
Answer: A: Adenosine 
Explanation: None