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': 'HBV all true, except - \nSelect and explain. \nA. It is a DNA virus, B. Spreads by blood transfusions, C. HBs Ag marker on infection, D. Least chance of chronicity', 'role': 'user'}, {'content': "Answer: D \nExplanation: HBV transmission by parenteral sexual and perinatal modes.HBsAg is the 1st marker to appear in blood after infection. HBV consist of two linear strands of DNA. REF:ANANTHANARAYAN AND PANIKER'S TEXTBOOK OF MICROBIOLOGY 9TH EDITION PAGE NO:544-546", 'role': 'assistant'}]