PLEASE HELP 25 POINTS (6th grade question) idk why it says high school

With a limited amount of land and an increasing human population to feed from this land, each human's piece of land to produce their food is becoming smaller and smaller. Protecting the land is very important and can be done in a variety of ways. Which one does not describe a way to conserve farmable land? A) Eating lower on the food chain. B) Stabilizing the human population. C) Deciding to build new conservatories on the land. D) Trying to reduce pollution in as many ways as possible.