It means that only those who are able to adapt with all conditions they are placed in will be able to live.
D, the black squirrels have survived because black has provided them with an advantage in this environment.
Answer:
An eclectic approach
Explanation:
An eclectic approach is an approach that combines multiple different approaches. In psychotherapy, an eclectic approach can be described as one that relies on multiple theoretical orientations and techniques. This allows the therapist to be flexible and use methods that best suit their client's individual needs.