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': 'During gothic arch tracing apex indicates \nSelect and explain. \nA. Centric occlusion, B. Horizontal jaw relations, C. Centric relation, D. Physiologic rest position', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]