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': 'For approximate how much time the 4% buffered glutaraldehyde is applied over the pulp stump during pulpotomy? \nSelect and explain. \nA. 10 Sec., B. 60 Sec., C. 2 min, D. 4 min', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]