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 drug is cell cycle phase specific? 
Select and explain. 
A. Ifosfamide, B. Bleomycin, C. Cisplatin, D. Chlorambucil
B: Bleomycin
Answer: B: Bleomycin 
Explanation: Ans. is 'b' i.e., Bleomycin Bleomycin is specific for G2 phase. o Alkylating agents (Ifosfamide, chlorambucil) and platinum compound (cisplatin) are cell cycle nonspecific.