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': 'Which of the following type of malignancy is an impoant indication for L - asparaginase? \nSelect and explain. \nA. AML, B. ALL, C. CML, D. CLL', 'role': 'user'}, {'content': 'Answer: B \nExplanation: L - asparaginase is the most commonly used antineoplastic drug used in the treatment of ALL. It exes its antitumor effect by hydrolysis of asparagine selectively affecting leukemic cells which possess low levels of asparagine synthase.', 'role': 'assistant'}]