This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
Hepatitis B infectivity is indicated by 
Select and explain. 
A. Anti-HBsAg, B. HBsAg + HBeAg, C. Anti-HBsAg - Anti-HBc, D. Anti-HBeAg + Anti-HBs Ag
B: HBsAg + HBeAg
Answer: B: HBsAg + HBeAg 
Explanation: .