Answer:
The correct option is C. habitat
Step-by-step explanation:
In ecology, a habitat can be described as a place where an organism lives. A species habitat can be defined as a place where it can find shelter, where it can find its food, where it can mate etc. Hence, option C is correct.
Other options like option D are false because a population is not a region of land. Population can be described as the number of individuals of a species which live together in an area at the same time period and can interbreed to produce fertile offsprings.