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': 'All of the following skin changes are associated with Diabetes Mellitus except \nSelect and explain. \nA. Acanthosis Nigricans, B. Granuloma annulare, C. Necrobiosis lipiodica, D. Salmon patch', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Salmon patch is associated with "Sturge - Weber" syndrome.', 'role': 'assistant'}]