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: Medicine
[{'content': 'All of the following drugs are used in management of ALL Except: \nSelect and explain. \nA. Methotrexate, B. All - trans retinoic acid, C. Prednisolone, D. L-Asparginase', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Answer is B (All - trans-retinoic acid) All - trans- retinoic acid is used in the treatment of M3 subset (Acute Promyelocytic leukemia) of Acute Myeloid Leukemia (AML) and not in ALL', 'role': 'assistant'}]