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: Pathology
[{'content': 'All of the following are good prognostic factors for acute lymphoblastic leukemia ,except: \nSelect and explain. \nA. Age of onset between 2-8 years, B. Initial WBC count less than 50000, C. Hyper ploidy, D. t(9:22), t(8:14), t(4:11)', 'role': 'user'}, {'content': 'Answer: D \nExplanation: . t(9:22), t(8:14), t(4:11)', 'role': 'assistant'}]