Sustainability entails two broad approaches. One is _______, where the practice is high-input agriculture on less land to preserve wilderness biodiversity, and the other is ______, where the focus is on mimicking and restoring biodiversity through practices such as agroforestry and mixed farming.
A. crop-rotation; plant-ecology
B. conservation; agroecology
C. preservation; plant-ecology
D. transversation; agroecology