This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacterial infections, Subject name: Dental
[{'content': 'Bullous impetigo is caused by \nSelect and explain. \nA. Streptococcus, B. Staphylococcus, C. Pseudomonas, D. Y. Pestis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Bulbous impetigo causative organism: staph aureus age: most common in neonates and infants bulle : thick walled and lasts for 2-3 days extend peripherally with central clearing iadvl textbook of dermatology page 228', 'role': 'assistant'}]