<prompt> Primordial prevention is the -Prevention of diseases among the hill-dwelling and tribal peopleProlongation of human life span to the maximum extentPromotion of health, well being and efficiencyPrevention of diseases through modification of their risk factors  <response>: Ans. is d i.e., Prevention of diseases through modification of their risk factors It is the prevention of the emergence or development of risk factors in countries or population groups in which they have not yet appeared 