You determine that two species of birds coexist in the same tree,but that they have different feeding behaviors that prevents them from competing with one another for resources.One bird species feeds on insects found in the bark of this tree,while the other bird species feeds on insects at the branch tips.One explanation of your observation could be that:
A) Coexistence is due to niche differentiation. B) Coexistence is due to shared resource utilization. C) Coexistence is not due to resource specialization. D) None of the above.