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': 'Noninvasive diarrhea can be caused by the following? \nSelect and explain. \nA. Shigella, B. B. cereus, C. Salmonella, D. Y. enterocolitica', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) Bacillus cereus Diarrhea of B. cereus is mediated by enterotoxin which resemble E. coli LT. The incubation period is 8-16 hours. Bacteria causing invasive diarrhea Shigella Salmonella Enteroinvasive E. coli Campylobacter jejuni', 'role': 'assistant'}]