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': 'Cell most sensitive to radiation: \nSelect and explain. \nA. Lymphocyte, B. Neurotrophil, C. Basophil, D. Platelets', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. Lymphocyte', 'role': 'assistant'}]