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
Carmustine is a 
Select and explain. 
A. Anti metabolite, B. Nitrogen mustards, C. Nitrosoureas, D. Taxanes
C: Nitrosoureas
Answer: C: Nitrosoureas 
Explanation: None