Answer:
I don't understand what u are saying
Explanation:
I believe that what you need is to match the word with the definition. Here it is!:
emigration
leaving one's homeland to settle in a new place
immigration
movement
of people to a new country
migration
the movement from one place to another
underpopulation
birth rate insufficient to replace the existing population
urbanization
development the increase in the population of a city
sustainable
development the ability to meet current needs without
reducing the ability to meet future needs
unsustainable development
resources being used up at a faster rate than they can be replenished
overpopulation
the number of people exceeds the available natural resources in an area
The answer is D.China
hope I helped you :)