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': 'Vital bleaching temperature \nSelect and explain. \nA. 100-115℉, B. 115-140℉, C. 140-160℉, D. 160℉ - till patient tolerates', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The temperature safely tolerated by pulp is 115-140 °F', 'role': 'assistant'}]