The demographic transition is social trend that involves____________?

The demographic transition is social trend that involves____________?

A. a reduction in population size caused by a higher rate of emigration than immigration
B. a change in the principal causes of death and disease since industrialization
C. increased birth and death rates resulting in a relatively young population
D. a decline in the birth rate greater life expectancy and an ageing population

Demographers who once believed that the U.S population would stabilize between 290 and 300 million people now believe that it will stabilize at around 390 million people because its________________?

Demographers who once believed that the U.S population would stabilize between 290 and 300 million people now believe that it will stabilize at around 390 million people because its________________?

A. overall birth-rate will increase significantly in the early part of the new century
B. life expectancy at birth will shortly increase to nearly 100 years of age
C. immigration rate is expected to remain high
D. all of the above