This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Specific Cytogenetic Disorders, Subject name: Pathology
[{'content': 'Syndrome which is associated with increased risk of leukaemia: \nSelect and explain. \nA. Plummer Vinson syndrome, B. Klienfelter syndrome, C. Sturge webber syndrome, D. Multiple Hamaoma', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Association of Klinefelter syndrome Breast cancer Extragonadal germ cell tumors Autoimmune diseases (SLE) Acute leukaemia.', 'role': 'assistant'}]