Final answer:
The correct answer is A. Habitat, which refers to the physical environment where a species lives, including factors like food, shelter, and climate conditions relevant to the organism's survival.
Step-by-step explanation:
An organism's habitat includes food, shelter, its predators, the temperature, the amount of moisture the organism needs to survive, and more. The term habitat refers to the physical environment in which a species lives and to which it is adapted. This includes various abiotic factors such as temperature and rainfall, which also influence the traits of the organisms living there. In contrast, a niche encompasses the role of a species within its ecosystem, including how it interacts with both biotic and abiotic elements. It's important to note that no two different species can occupy the same niche in the same habitat for an extended period because of the competitive exclusion principle.