B. Interdependence.
Step-by-step explanation:
Symbiotic relationships refer to a long term, close interaction betweeen two different biological organisms, be it mutualistic, parasitic or commensalistic. In each kind of symbiotic relationship, atleast one organism benefits. Yet,each kind of symbiotic relationship illustrates interdependence, in whicn both organisms or atleast one organism requiire the other to survive.