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': 'Herpes simplex virus is \nSelect and explain. \nA. Single stranded DNA, B. Double stranded DNA, C. Single stranded RNA, D. Double stranded RNA', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]