Nutrition education in schools once promoted daily consumption of food from each of the “four food groups”: milk, meat, fruit and vegetables, and breads and cereals.
Critique
It was dangerous to health for nutrition education to promote daily consumption of food from the four food groups, milk / meat / fruit & veggies / breads & cereals.
Evaluate / Goal
Well, there's really nothing for us to do but head to the answers. We need to get rid of four answers that give us a way to explain how this advice had potentially dangerous results.