This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Physics of Radiotherapy, Subject name: Radiology
[{'content': 'Radium emits which of the following? \nSelect and explain. \nA. b, g, B. a, b, g, C. a, b, D. Neutrons', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., a, b, g o Radium emits a, b and g rays. Radium also produces neutrons when mixed with beryllium.", 'role': 'assistant'}]