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': 'Poor prognostic indicator in ALL - \nSelect and explain. \nA. Age < 2 year, B. TLC 4000-10,000, C. Presence of testicular involvement at presentation, D. Presence of blasts in peripheral smear', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e. Age < 2 year", 'role': 'assistant'}]