Which of the Following Best Describes Our Current Research on Childlessness

Which of the following best describes our current research on childlessness?

A) Hispanic women are more likely to be childless than those of other races or ethnic groups.
B) Childless women tend to have lower-level jobs and earn less money than their counterparts with children.
C) The increase in the number of childless women is unique to the U.S.; most other developed countries have seen a decrease in childlessness.
D) The number of childless women has increased since the 1970s.