The correct answer is the fourth. Before the First World War, the traditional female roles in Western countries were limited to the domestic sphere, such as maids and housewives, as well as jobs in textile factories, nursing, sewing and laundry.
During the two world wars, women were necessary to carry out new functions. Some women worked in ammunition factories, offices and large hangars used to build airplanes, while others received training in small arms, first aid, and vehicle maintenance.