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': 'A 45 year old female patient returns to your clinic with complaints of food lodgement in interproximal area of 47. On intraoral examination, 47 is restored with mesio-disto-occlusal amalgam restoration. How many point angles and line angles are there in this preparation? \nSelect and explain. \nA. 4 and 8, B. 6 and 8, C. 6 and 14, D. 8 and 14', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]