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: Medicine
The first virological marker following acute hepatic infection if he has 
Select and explain. 
A. IgM Anti Hbc Ag, B. Hbs Ag, C. Anti Hbs Ag, D. Anti Hbe Ag
B: Hbs Ag
Answer: B: Hbs Ag 
Explanation: None