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': 'The first jaw relation to be recorded \nSelect and explain. \nA. Horizontal jaw relation, B. Vertical jaw relation, C. Orientation jaw relation, D. Any of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]