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
Quality of life is defined as? 
Select and explain. 
A. Standard of living, B. Level of living, C. Subjective feeling of well being, D. All of the above
C: Subjective feeling of well being
Answer: C: Subjective feeling of well being 
Explanation: Ans. is 'c' i.e., Subjective feeling of well being Ouality of life o The level of living and standard of living are objective criteria of well being, while quality of life comprises the individual's own subjective evaluation of these. o Recent definition of quality of life is as follows "a composite measure of physical mental and social well being as perceived by each individual or group of individuals." o WHO definition is as follows "the condition of life resulting from the combination of the effects of the complete range of factors such as those determining health, happiness, education, etc."