Under which condition will the relationship between population change and resource planning be clearest?

Correct answer: When population rises rapidly through births and in-migration while resources are limited

The direct answer is A. Population planning is needed when the number of people and their demand for food, water, housing, education, health care, transport and employment are increasing faster than available resources and services. Rapid births add people through natural increase, and in-migration adds people from outside. When both occur while resources are limited, administrators must estimate future needs and plan capacity carefully. A is correct because it creates the clearest link between population processes, rising demand and resource planning. B may create a different planning situation but does not show rapidly rising demand. C removes the need for resource allocation, and D removes scarcity, which is the central reason for planning. Memory cue: fast population growth plus scarce resources requires forward planning.