Prevention of diseases among the hill-dwelling and tribal people
B
Prolongation of human life span to the maximum extent
C
Promotion of health, well being and efficiency
D
Prevention of diseases through modification of their risk factors
High-Yield Explanation
Primordial Prevalence: It is the prevention of emergence or development of risk factors in countries or population groups in which they have not yet appeared. Eg :. Obesity , Hypeension