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: Biochemistry
[{'content': 'Which of the following does not belong to 3Ds of Pellagra \nSelect and explain. \nA. Diarrhea, B. Dementia, C. Dermatitis, D. Diplopia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Options a, b, c are part of 3Ds of pellagra.', 'role': 'assistant'}]