This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: miscellaneous, Subject name: Microbiology
[{'content': 'Food poisoning is seen with \nSelect and explain. \nA. Staph aureus, B. Staph. epidermidis, C. Strep. pyogenes, D. Staph saprophyticus', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Enterotoxin is responsible for the manifestations of staphylococcal food poisoning - nausea, vomiting, and diarrhea 2-6 hour after consuming food contaminated by the preformed toxin. The toxin is a relatively heated stable, resisting 100deg C for 10 to 40 minutes depending on the concentration of toxin and nature of the medium. Ref: Ananthanarayan and Paniker&;s Textbook of Microbiology, 9th edition; pg no: 202', 'role': 'assistant'}]