How did world war i impact women in the united states?

a) women received equal pay for equal work.

b) women were prohibited from working as red cross volunteers.

c) women worked jobs that had been held almost exclusively by men.

d) women no longer held traditional jobs such as nursing or teaching.

The right answer is letter C. Here some explanation:

Never before in all of history have so many women in different countries been called upon to contribute to a war effort as between the years 1939 and 1945. They held positions that were once considered male, such as engineers, production supervisors, and truck drivers, for example, and also enlisted in the military. The massive entry of women into the labor market, whether to fill the void left by the men on the battle front or to fill a demand arising from the outbreak of war, would have a great social impact during and after the event.  

It did not take long for the leaders of the countries involved in the conflict to realize that they would have to summon women to war. Initially, they were called upon to volunteer, but as the fighting progressed, they began to be recruited.  If in World War I they were in factories and nurses, they were now manufacturing and even flying planes.

The first country to recognize the need to employ female labor during World War II was England. In Britain, the vast majority of jobs were still occupied by men. Most women did not work and was limited to fulfilling their role as mother and wife. However, the war would mobilize 5.5 million men. The female labor force becomes decisive for the country to remain in this troubled period.

according to my research (britannica and quizlet) the first settlements were along the huang river because it could give the crops more fertile soil that really it out. this was due to the yellow slit caused by floods of the river.