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': 'When patient closes in centric occlusion if lower jaw is placed anteriorly in relation to upper jaw. It is called as \nSelect and explain. \nA. Normal occlusion, B. Centric occlusion, C. Pre normal occlusion, D. Centric relation', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]