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. Hyperdiploidy, trisomy of chromosomes 4, 7 and 10 and + (12;21), C. Intial WBC count less than 50000, D. + (9;22), + (8;14)', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Favorable Prognostic markers\nUnfevorable prognosis markers\n\n\n\n\nAge between 2 and 10 years\n\n\n\n\nBelow 2 years and above 10 years\n\n\n\n\n\n\nLow white cell count\n\n\n\n\nHigh (more than 50,000 cells / cumm)\n\n\n\n\n\n\nHyperdiploidy\n\n\n\n\nHyoploidy\n\n\n\n\n\n\nTrisomy of chromosome 4, 7 and 10 and + (12;21)\n\n\n\n\n+ (9;22) (the philadelphia chromosome)', 'role': 'assistant'}]