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': 'In radiation the rays used are – \nSelect and explain. \nA. α,β, B. α,γ, C. β, γ, D. β, γ,α', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]