Which of the Following Is Correct About Women's Participation in Paid

Which of the following is correct about women's participation in paid work in the 20th century?

A) Participation steadily increased throughout the century.
B) The 1920s saw participation rise dramatically.
C) Participation spiked in the 1940s, only to decline in the 1950s.
D) Participation remained fairly low throughout the entire century.