Which Statement Identifies the Most Significant Contributing Factor for the Projected

Multiple Choice

Which statement identifies the most significant contributing factor for the projected increase in population in the United States between now and 2050?

A) The United States allows more legal immigration than other developed countries do.
B) The overall fertility rate among Americans is expected to increase significantly.
C) Improved technology will allow more infertile couples to give birth using in vitro fertilization techniques.
D) Minorities will experience an exponential increase in fertility rates.