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': 'Toxic shock syndrome is Staphylococcus infection is due to - \nSelect and explain. \nA. Superantigen, B. Alpha-hemolysis, C. Coagulase, D. Penton Valentine factor', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Superantigen", 'role': 'assistant'}]