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': 'Fungus not cultivable usually - \nSelect and explain. \nA. Rhinosporidium, B. Cryptococcus, C. Dermatophytes, D. Histoplasma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Rhinosporidium seeberi has not been cultivated in media.', 'role': 'assistant'}]