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: Social & Preventive Medicine
[{'content': 'Loss of pa or function - \nSelect and explain. \nA. Impairment, B. Disability, C. Handicap, D. Disease', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Impairment", 'role': 'assistant'}]