Public health differs from medicine in that it

Medicine centers or focuses on  individual while public health centers or focuses on the population

Public health differs from medicine in that it centers or focuses on the population while medicine centers or focuses on  individual.

Explanation:

Public health refers to the science which prevents diseases and improves or promotes health at community or population level. This is done through education, policy making and research for disease and injury prevention.

Medicine covers diagnosis, prognosis, treatment, and prevention of disease, medical research, and other aspects of health of individuals. It aspires or aims to promote and maintain health and wellbeing of individuals.

this would and i think the answer is d