This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Levels of Prevention of Disease, Subject name: Social & Preventive Medicine
"Ottawa Chaer of Health Promotion" incorporates all of the following key action areas except:- 
Select and explain. 
A. Build healthy public policy, B. Strengthen community action for health, C. Build social security system, D. Reorient health services
C: Build social security system
Answer: C: Build social security system 
Explanation: Ottawa Chaer for Health Promotion - Five key action areas: Public health policy. Strengthen community action for health. Reorientation of health services. Personal skills development. Suppoive environment.