This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteria, Subject name: Microbiology
[{'content': 'The most frequent cause of scalded skin syndrome is: \nSelect and explain. \nA. Staphylococci, B. Pneumococci, C. Enterococci, D. Meningococci', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Straphylococci(Ref: Harrison, 18th/e, p. 1164-1167; Ananthanarayan, 9th/e, p. 199)* Staphylococcal scalded skin syndrome (SSSS) is caused by an exfoliative toxin produced by roughly 5% of Staphylococcus aureus. As the syndrome evolves, an initial infection occurs, commonly at a site such as the oral or nasal cavities, throat, or umbilicus.", 'role': 'assistant'}]