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': 'Tripod marks are placed on the cast after surveying for\nwhich of the following reasons: \nSelect and explain. \nA. To record the undercut areas on the abutment teeth, B. To mount the cast on the articulator, C. To record the orientation of the cast to the articulator, D. To record the orientation of the cast to the surveyor', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]