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
Which of the following anticancer drugs act on M phase 
Select and explain. 
A. Paclitaxel, B. Etoposide, C. Irinotecan, D. Bleomycin
A: Paclitaxel
Answer: A: Paclitaxel 
Explanation: Paclitaxel belongs to taxane group of compounds which act by stabilizing mitotic spindle and thus acts on M-phase.