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
Drug of choice for chronic hepatitis–B is 
Select and explain. 
A. Lamivudine, B. IFN-alpha, C. Ribavirin, D. Zidovudine
A: Lamivudine
Answer: A: Lamivudine 
Explanation: None