The correct answer is C.
Rosie the Riveter has became a worldwide famous image (find the photo attached), together with the lemma: "We can do it!"
As most men were absent in the United States during WWII, the aim of the poster was to encourage women to enter the workforce, mostly by accepting the factory jobs that "their husbands" used to perform before. This was a crucial issue, because US women had in their hands the subsistence of the US economy.
