Why Would a Health Care Provider Encourage and Plan Interventions

Why would a health care provider encourage and plan interventions that include downstream, midstream, and upstream activities when responding to a population health concern such as obesity among school-age children?

A) Behaviour change theories require implementation at all levels of prevention.
B) Health status improvements are greater through when using all levels of prevention.
C) The planning involved is interdisciplinary and usually interprofessional.
D) Interventions risks will be reduced when you influence health status.