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: Radiology
Not a Radioprotector 
Select and explain. 
A. Amifostine, B. IL-1, C. GM-CSF, D. BUDR
D: BUDR
Answer: D: BUDR 
Explanation: BUDR is a Non-hypoxic cell Radiosensitizer.