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: Dental
[{'content': 'Staphylococcal infection causes all disease except – \nSelect and explain. \nA. Impetigo, B. Erysipelas, C. Ecthyma, D. Scaldy skin syndrome', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Erysipelas is caused by streptococcus pyogenes β - hemolytic streptococci).\nImportant skin infections cause by streptococcus pyogenes β - hemolytic streptococci) are Impetigo contagiosa, Ecthyma, Erysipelas, Cellulitis.', 'role': 'assistant'}]