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: Medicine
[{'content': "All of the following are chromosomal breakage syndromes except - \nSelect and explain. \nA. Fanconi's anaemia, B. Ehler-Danlos syndrome, C. Bloom syndrome, D. Ataxia telengiectasia", 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]