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': 'In partial denture construction, surveyor should be used \nSelect and explain. \nA. To determine the path of insertion, B. To determine design, C. In conjunction with mouth preparation, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]