Which of the Following Would Be an Example of Primary

Which of the following would be an example of primary prevention?

A) A new walk-in clinic is built to reduce people's reliance on hospital emergency rooms.
B) After it becomes clear that Simon's "social drinking" is problem drinking, Simon's partner gets rid of all the alcohol in the home, so their teenagers can't start experimenting.
C) Morgan is enrolled in a diabetes support group to assist her in managing her condition.
D) Various associations attempting to reduce spinal cord injuries lobby the government to pass bicycle helmet laws for children.