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
Treatment of choice in ventricular fibrillation is: 
Select and explain. 
A. Sotalol, B. Cardioversion, C. Ibutilide, D. Adenosine
B: Cardioversion
Answer: B: Cardioversion 
Explanation: None