This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Concept of health and disease, Subject name: Social & Preventive Medicine
Any loss or abnormality of psychological, physiological or anatomical structure or function is known as 
Select and explain. 
A. Disease, B. Disability, C. Impairment, D. Handicap
C: Impairment
Answer: C: Impairment 
Explanation: Impairment - Any loss or abnormality of psychological, physiological or anatomical structure or function. Disability - Any restriction or lack of ability to perform an activity in the manner or within the range considered normal for a human being. Handicap - A disadvantage for a given individual resulting from an impairment or a disability, that limits or prevents the fulfillment of a role that is normal (depending on the age, sex, and social and cultural factors) for that individual. Ref: Park&;s Textbook of Preventive and Social Medicine,24th edition,Page no. 48