This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacterial Infection of Skin, Subject name: Skin
[{'content': "Ritter's disease is caused by: \nSelect and explain. \nA. S. aureus, B. S. epidermidis, C. S. albus, D. S. saprophyticus", 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. a. S. aureusStaphylococcal Scalded Skin SyndromeAlso known as Ritter's diseaseDue to an epidermolytic toxin produced by Staphylococcus aureusBlister level is in the stratum granulosumStarts with a prodrome of fever and irritability, followed by an erythematous macular rash over flexures and faceLeaves behind erosions over these sitesErosions heal rapidly due to the superficial level of splitNikolsky +veTreated with systemic antibiotics", 'role': 'assistant'}]