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: Social & Preventive Medicine
[{'content': 'Which of the Hepatitis B Virus serological marker indicates the first evidence of Hepatitis B infection? \nSelect and explain. \nA. Anti-HBs, B. Anti-HBc, C. HBeAg, D. HBsAg', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]