Answer:
D
Step-by-step explanation:
The Malthus theory states that population should be controlled because there are no enough resources to please the future needs. This is how it works: in the short-run there is a change in technology that leads to an increase in income. Because people have more income, better life standards, the birth rate increases and exceeds the death rate. In the long-run total income would have to be distributed between more people than before and the economy reaches the equilibrium again, in which the birth rate equals the death rate.
In other words, econmic success becomes a reproductive success.