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': 'Good prognosis of ALL - \nSelect and explain. \nA. Hyperdiploidy, B. Hypodiploidy, C. T cell line, D. Philadelphia chromosome', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Hyperdiploidy is a good prognostic indicator.\nHypodiploidy, TALL and philadelphia (BCR-ABL fusion) chromosome are poor prognostic indicators.', 'role': 'assistant'}]