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: Anatomy
[{'content': 'When the jaw is opened \nSelect and explain. \nA. Condyles move upwards, B. Articular disc moves posteriorly, C. Lateral pterygoids contract, D. Condyles moves around vertical axis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]