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': 'Minimum temperature required by the hot GP sticks to stimulate pulp is \nSelect and explain. \nA. 65°c., B. 45°c., C. 55°C., D. 75°c.', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]