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: Medicine
[{'content': 'Class II of HIV associated diseases describes: \nSelect and explain. \nA. Acute infections, B. Asymptomatic infections, C. Persistent generalized lymphadenopathy, D. All of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]