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 causes minimum bone marrow suppression - 
Select and explain. 
A. Bleomycin, B. 5FU, C. Cytarabine, D. Topotecan
A: Bleomycin
Answer: A: Bleomycin 
Explanation: Ans. is 'a' i.e., Bleomycin