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 anticancer drugs act on M phase \nSelect and explain. \nA. Paclitaxel, B. Etoposide, C. Irinotecan, D. Bleomycin', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Paclitaxel belongs to taxane group of compounds which act by stabilizing mitotic spindle and thus acts on M-phase.', 'role': 'assistant'}]