How can population control be defined?

Population control can be defined as regulating the growth and distribution of a population. This encompasses various strategies and measures that govern how various factors such as birth rates, death rates, and migration patterns contribute to the overall size and distribution of a population over time.

Effective population control entails implementing policies that may involve family planning, regulating immigration, and addressing healthcare and education, which all have direct implications for population growth and sustainability. By focusing on the regulation aspect, population control seeks to balance the size of a population with the availability of resources, and it aims to ensure that growth is managed in a way that is sustainable for the environment and society.

The other options do not encapsulate the broader meaning of population control. For instance, increasing population through immigration or promoting high birth rates directly contradict the very essence of managing population size and distribution. Similarly, policies aimed solely at sustaining natural resources, while related, do not specifically address the regulation aspect of population growth, which is core to the definition of population control.