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
[{'content': 'Hepatitis B vaccination is given to a patient. His serum will reveal - \nSelect and explain. \nA. HBsAG, B. Anti-HBsAg, C. IgM Anti-HBcAg and HBsAg, D. IgM and IgG anti-HBcAg', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Anti HBs is the protective antibody REF:ANANTHANARYANAN TEXTBOOK OF MICROBIOLOGY 9th EDITION PGNO.546', 'role': 'assistant'}]