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': 'Most sensitive tissue to Radiaton is \nSelect and explain. \nA. Liver, B. Gonads, C. Spleen, D. Skin', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Gonads', 'role': 'assistant'}]