Which of the Following Statements Is True of Prevention Programs

Which of the following statements is true of prevention programs?

A) Primary prevention strategies focus on detecting a disorder in its earliest stages.
B) Secondary prevention focuses on people who already have a disorder and focus on prevention of relapse.
C) Tertiary prevention strategies for preventing drug abuse might include changing neighborhood characteristics that contribute to drug use.
D) Secondary prevention often involves screening for early signs of a disorder and then administering an intervention to prevent the development of a full-blown disorder.