The correct option is B.
Interdependence refers to the mutual reliance between living organisms.
The idea of interdependence in nature holds that all the living things on earth are interconnected as a result of their needs for matter and energy. They all depend on one another to survive. For instance, humans depend on green plants to produce oxygen which they used for respiration, while plants depends on humans to produce carbon dioxide which they use in the process of photosynthesis.