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': "Trinucleotide repeats found ina) Huntigton's diseaseb) Spinocerebellar ataxiac) Amyotropic lateral sclerosisd) Sclerosis \nSelect and explain. \nA. ac, B. a, C. ad, D. ab", 'role': 'user'}, {'content': "Answer: D \nExplanation: Examples of trinucleotide repeat mutation :-\n\n\nHuntignton's disease \xa0 \xa0 \xa0\nSpinocerebella ataxia\xa0\nFriedreich ataxia\xa0\xa0\xa0\xa0\xa0\xa0\nFragile - X-syndrome\nDystrophia myotanica\nDentorubral pallidoluysiane atrophy\nX-chromosome spinobulbar muscular atrophy", 'role': 'assistant'}]