Why do demographers believe that birthrates will decline in some developed countries by 2025? a. there are free health-care facilities available to citizens. b. there has been an increase in the infant mortality rate. c. there will be a sudden increase in the birth rate. d. many citizens are choosing to have small families. e. there is a pattern of population migration to other countries.

D. Many citizens are choosing to have small families.

Explanation:

Many demographers believe that birth rates will decline in some developed countries by 2025. This reduction is mainly associated with three factors:

The downward trend in fertility rates is leading to a significant reduction in the birth rate in almost half of the countries, below the so-called replacement level - indicating that the volume of children per family is insufficient to maintain the size of the population in those places.

i dont know. sorry : (