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': "Which of the following is not a vesiculobullous disorder? \nSelect and explain. \nA. SSSS, B. Darier's disease, C. Dermatitis herpetiformis, D. Pityriasis rosea", 'role': 'user'}, {'content': 'Answer: D \nExplanation: Pityriasis rosea is a papulosquamous disorder caused by HHV6 and HHV7', 'role': 'assistant'}]