Which describes a grizzly bear’s habitat?
a. all the biotic factors in the ecosystem
b. all the abiotic factors in the ecosystem
c. the role of the bear in the ecosystem
d. the physical area where the bear lives
i put d, but im not sure..

C.the role of the bear in the ecosystem

An ecosystem involves both the biological (plants, animals, human beings) and non-biological (land, water, soil, and atmosphere) community which interacts as a system. More importantly, the living things are very dependent on the abiotic community since it cannot survive by itself. Every animal, plant and human needs the primary physiological needs of water, food and shelter provided by the abiotic system.   

Genetic engineering is the answer.