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: Dental
[{'content': 'Paper points are sterilized by: \nSelect and explain. \nA. Cold sterilization with chemical solution, B. Boiling, C. Hot salt sterilizer, D. All of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]