Which of the Following Most Accurately Describes Primary Prevention

Which of the following most accurately describes primary prevention?

A) efforts to reduce the consequences of certain disorders or diseases once they have developed
B) efforts aimed at a particular population to reduce the development of new cases of disorders or diseases
C) efforts to reduce the chances that certain problems will develop in subgroups that are considered to have a high risk
D) separation of cases of those who have certain diseases from those who do not in order to reduce the spread of such diseases