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: Surgery
[{'content': "Which of the following Trinucleotide repeat mutation is present in Huntington's disease? \nSelect and explain. \nA. CGG, B. GAA, C. CTG, D. CAG", 'role': 'user'}, {'content': 'Answer: D \nExplanation: CAG Disease Repeat Fragile-X syndrome Freidrich ataxia Myotonic dystrophy Huntington disease CGG GAA CTG CAG', 'role': 'assistant'}]