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
Pentostatin inhibits 
Select and explain. 
A. Dihydrofolate reductose, B. Adenosine deaminase, C. Thymidylate synthase, D. Uridylate synthose
B: Adenosine deaminase
Answer: B: Adenosine deaminase 
Explanation: Pentostatin is a purine analogue that inhibits Adenosine deaminase. It is used in cases of Hairy cell leukemia (Doc: Uadiribine).