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': 'Any restriction or inability to perform an activity in a range considered normal for a human being? \nSelect and explain. \nA. Disease, B. Impairment, C. Disability, D. Handicap', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]