What Is the Premise of the Social-Ecological Model Outlined in the 2015

What is the premise of the social-ecological model outlined in the 2015 Dietary Guidelines for Americans?

A) Coordinated partnerships, programs, and policies to promote healthy eating and active living.
B) Guidelines are written specifically to defined social groups.
C) Primary responsibility for disseminating information about the guidelines falls to educational institutions.
D) Implementation of guidelines to change eating and exercise patterns must begin within individual family units.