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: Anaesthesia
[{'content': 'Malampatti grading is for – \nSelect and explain. \nA. Mobility of cervical spine, B. Mobility of atlanto axial joint, C. Assessment of free rotation of neck before intubation, D. Inspection of oral cavity before intubation', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Mallampati score is done for :- \n\nOral cavity assessment to rule out difficult airway, and\nSleep apnea evaluation.', 'role': 'assistant'}]