Which statement BEST explains the motivation for putting trade barriers in place to limit the flow of agricultural goods?

Farmers in developing countries do not produce enough to compete with agribusinesses in the developed world.

Farmers have more political influence than consumers or food-industry lobbyists.

Preventing food-borne diseases is a major concern to governments in the developed world.

Countries want to maintain domestic production to protect against interruptions of the food supply.

There are still significant technological limitations to distributing crops far from where they are harvested.