The correct option is D sustainable
Sustainable agriculture is a farming method that is practised to conserve soil fertility for a longer period of time. This type of farming method maintains the productivity and usefulness to society for long periods of time. It is similar to organic farming as it makes use of natural ways of cultivation and uses chemical inputs only when it is necessary. Practices like crop rotation, water conservation, use of biotic controls for pests and harvest are followed in this method.