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': '5 hours ago a 7-year-old boy had a fall. He fractured\nhis maxillary right central incisor at gingival level. The\nexposed pulp is still vital. Treatment of choice is: \nSelect and explain. \nA. Pulpotomy, B. Pulpectomy, C. Extraction of the tooth, D. Pulp capping', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]