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: Pharmacology
[{'content': 'All of the following anticancer agents cause bone marrow suppression EXCEPT : \nSelect and explain. \nA. Chlorambucil, B. Daunorubicin, C. Doxorubicin, D. Flutamide', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Flutamide is an anti-androgen. Most hormonal agents are devoid of bone marrow suppressant effect.\nAlkylating agents, antimetabolites, natural products and other directly cytotoxic agents are myelosuppressants.\nVincristine and bleomycin are marrow sparing.', 'role': 'assistant'}]