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: Unknown
[{'content': 'Diagnostic test for group A streptococcal \nerythroderma is \nSelect and explain. \nA. Bile solubility test, B. Catalase test, C. Optochin sensitivity, D. Bacitracin sensitivity', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]