This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infection, Subject name: Medicine
[{'content': 'This type of lesion in HIV patient is caused most likely by which of the following? \nSelect and explain. \nA. Bacteria, B. Fungus, C. Virus, D. Parasite', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B. Fungusa. This HIV/AIDS patient presented with a secondary oral pseudomembranous candidiasis infection.b. The immune system which suffers with HIV undergoes a dramatic reduction in its effectiveness, resulting in the greater possibility of secondary infections.', 'role': 'assistant'}]