This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
Hepatitis B vaccination is given to a patient. His serum will reveal - 
Select and explain. 
A. HBsAG, B. Anti-HBsAg, C. IgM Anti-HBcAg and HBsAg, D. IgM and IgG anti-HBcAg
B: Anti-HBsAg
Answer: B: Anti-HBsAg 
Explanation: Anti HBs is the protective antibody REF:ANANTHANARYANAN TEXTBOOK OF MICROBIOLOGY 9th EDITION PGNO.546