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': 'HIV virus contains - \nSelect and explain. \nA. Single stranded DNA, B. Single stranded RNA, C. Double stranded DNA, D. Double stranded RNA', 'role': 'user'}, {'content': 'Answer: B \nExplanation: HIV contain two identical single strantede ppsitive senseRNA copie REF:<\\p> ANATHANARAYAANAN MICROBIOLOGY NINTH EDITION PAGE.571', 'role': 'assistant'}]