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: Microbiology
[{'content': "Which of the following antigen is found within the nuclei of infected hepatocytes and not usually in the peripheral circulation in Hepatitis B' infection ? \nSelect and explain. \nA. HBeAg, B. HBcAg, C. Anti-HBc, D. HBsAg", 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]