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
Most important component of level of living is:(2004) 
Select and explain. 
A. Health, B. Education, C. Occupation, D. Housing
A: Health
Answer: A: Health 
Explanation: Ans: aRef: Park, 17th ed, p. 20 & 18th ed, p. 21