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': 'The following is a single stranded DNA containing virus with no envelope \nSelect and explain. \nA. Parvo virus B19, B. Hepatitis A, C. Herpes simplex, D. Human reo virus', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Parvo-SSDNA with no envelope Hepatitis-SS RNA with no envelope Herpes virus is an enveloped double-stranded DNA containing virus Ref: Baveja 5th ed Pg: 423', 'role': 'assistant'}]