A total fertility rate of 1.0 will cause the:

A) population to remain stable.
B) population to double in one generation.
C) population to collapse in one generation.
D) next generation to be half the size of the current generation.

A total fertility rate (TFR) of 1.0 means that, on average, each woman in a population is having one child. Since it takes two people (a man and a woman) to produce one child, a TFR of 1.0 would result in the next generation being half the size of the current generation, assuming no immigration and that the TFR applies uniformly across the population.