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': 'Detected by stool examination except - \nSelect and explain. \nA. Staphyloccous food poisoning, B. Giardiasis, C. Fungus, D. None', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. is None . All given options can cause diarrhea and stool examination is impoant for diagnosis. "Examination of stool sample is an impoant supplement to the narative history".', 'role': 'assistant'}]