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
The inability to carry out ceain function or activity which is otherwise expected for that age/sex is known as 
Select and explain. 
A. Disease, B. Impairment, C. Disability, D. Handicap
C: Disability
Answer: C: Disability 
Explanation: Disability Because of an impairment, the affected person may be unable to carry out ceain activities considered normal for his age, sex, etc. This inability to carry out ceain activities is termed "disability". A disability has been defined as "any restriction or lack of ability to perform an activity in the manner or within the range Considered normal for a human being". Ref:Park 24th Edition Pgno : 48