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': 'Which of the following is not an antineoplastic antibiotic ? \nSelect and explain. \nA. Actinomycin D, B. Doxorubicin, C. Bleomycin, D. Spiramycin', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]