The normal abode of an animal or plant

Answer: Option B

One word substitute is Habitat.

Environment: the surroundings or conditions in which a person, animal, or plant lives or operates.
Habitat: the natural home or environment of an animal, plant, or other organism.
Settlement: an official agreement intended to resolve a dispute or conflict.
Niche: a shallow recess, especially one in a wall to display a statue or other ornament.