According to the U.S. Census Bureau, 2019, identify a true statement about the age of men and women at the time of marriage and childbirth in 2010.
O It had reached the all-time high of nearly 30 for men and nearly 29 for women.
O It has been gradually declining over the 2000s.
O It had reached the lowest ages of nearly 19 for women and nearly 18 for women.
O It remained steady since the 1910s.