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': 'Shoest incubation period is for which food poisoning: \nSelect and explain. \nA. Staphylococcus aureus, B. Bacillus cereus, C. Salmonellosis, D. Vibrio cholera', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Bacillus cereus', 'role': 'assistant'}]