Answer: b. sustainable agriculture
Sustainable agriculture represents a compromise between the needs of the present generation and the protection of future ones. It refers to those agricultural practices that strive to maintain a healthy environment without dismissing economic profitability. Farmers who want to cultivate the land in a sustainable way use particular methods to conserve soil and water, always striving for the preservation of these ecosystems. Practices include minimizing water use, strengthening local economies and lowering pollution levels.