A. increases in the age of marriage and the age at which childbearing begins
B. there being fewer women of childbearing age than there were in the first half of the century
C. errors in the measurement of birth rates and production of statistics
D. the risk diseases caused by poverty poor housing and bad sanitation
Correct Answer: increases in the age of marriage and the age at which childbearing begins ✔
Last Updated: September 23, 2019