To help decrease food shortages and food insecurity, why might governments encourage their people to adopt vegetarian diets?
A.
A person can get more food energy from eating plants than from eating meat.
B.
Energy from plant photosynthesis would be more directly delivered to people.
C.
Large-scale livestock farms could then be supported with genetically modified grains.
D.
This approach would provide more jobs for farmers, who then can support their families.