This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Medicine
Rx of chronic HBV infection - 
Select and explain. 
A. Interferon, B. Adefovir dipivoxil, C. Lamivudine, D. Famcyclovir
A: Interferon
Answer: A: Interferon 
Explanation: <p>Davidson&;s principles and practice of medicine 22nd edition. *interferon alpha is most effective in persons with low viral load and serum transaminase greater than raise the upper limit of normal. #lamivudine although effective ,long term therapy is complicated.</p>