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': 'Which hepatitis virus had been called as enterovirus - \nSelect and explain. \nA. HAV, B. HBV, C. HCV, D. HEV', 'role': 'user'}, {'content': 'Answer: A \nExplanation: HAV was originally designated as enterovirus 72 REF:<\\p> ANATHANARAYANAN MICROBIOLOGY NINTH EDITION PAGE.541', 'role': 'assistant'}]