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': 'All of the following are advantages of shoulder finish line EXCEPT \nSelect and explain. \nA. Good crown contour, B. Less distortion, C. Provide adequate bulk, D. Superior marginal adaptation', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]