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': 'Rhinosporidiosis is caused by: \nSelect and explain. \nA. Fungus, B. Protozoa, C. Aquatic bacterium, D. Protista', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. a. Fungus', 'role': 'assistant'}]