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': 'Gypsum bonded investment should not be heated over: \nSelect and explain. \nA. 700°C, B. 1,300°C, C. 1,063°C, D. 900°C', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]