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
Loss of pa or function - 
Select and explain. 
A. Impairment, B. Disability, C. Handicap, D. Disease
A: Impairment
Answer: A: Impairment 
Explanation: Ans. is 'a' i.e., Impairment