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: Pediatrics
[{'content': 'Which of the following types of leukemia is administered prophylactic methotrexate for CNS prophylaxis – \nSelect and explain. \nA. ALL, B. AML, C. CLL, D. CML', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]