The correct option is D Women served as nurses in military hospitals during the war.
Women took up jobs that were once reserved for men. Before the war broke out, the only jobs reserved for women were teaching and domestic work. During the war, however, women served in clerical positions, and worked in sales, garments, and textile industries. They took up jobs in construction, transportation, and even war production, while also aiding the military hospitals on the frontlines as doctors and nurses, among other things.