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': 'The common causative agent in diarrhea in AIDS patients is \nSelect and explain. \nA. Toplasma, B. Cryptosporidium, C. Salmonellae, D. Mycobac teria', 'role': 'user'}, {'content': 'Answer: B \nExplanation: characteristic intestinal pathogen in AIDS is cryptosporidium REF:ANANTHANARAYANAN TEXT BOOK OF MICROBIOLOGY 9EDITION PGNO.576', 'role': 'assistant'}]