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': 'First factor of occlusion is: \nSelect and explain. \nA. Condylar guidance., B. Incisal guidance., C. Cuspal angulation., D. Plane of occlusion.', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Condylar guidance\n• First factor of occlusion.\n• Only factor, which can be recorded from the patient.\n• It is registered using protrusive registration.\n• Increase in the condylar guidance will increase the jaw separation during protrusion.', 'role': 'assistant'}]