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
[{'content': 'Amifostine, protects all of the following except – \nSelect and explain. \nA. CNS, B. Salivary glands, C. Kidneys, D. GIT', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Amifostine does not cross the blood brain barrier and offers no protection to the Central Nervous System.', 'role': 'assistant'}]