This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: PH Care, Elements & Principles, Subject name: Social & Preventive Medicine
'Primary health care' definition includes all except:- 
Select and explain. 
A. Acceptability, B. Availability, C. Affordability, D. Ambulatory
D: Ambulatory
Answer: D: Ambulatory 
Explanation: Primary health care: Essential health care, based on practical, scientifically sound, and socially acceptable methods and technology, made universally accessible to individuals and families in the community, through their full paicipation and at a cost that the community and country can afford. Hallmarks of primary health care : 4 A's of Primary Health Care 1) Affordability 2) Acceptability 3) Accessibility 4) Availability State medicine: Free medical care at government's expense Socialized medicine: Free medical care at government's expense but regulated by professional groups Service approach: Free medical care at door step of population.