I believe the correct answer is B, correct me if im wrong
Answer:
GDP declines, and unemployment rates rise because companies lay off workers to reduce costs. At the microeconomic level, firms experience declining margins during a recession. When revenue, whether from sales or investment, declines, firms look to cut their least-efficient activities.
Probably the most important change that happened at the time was that C - Women worked jobs that had ben held almost exclusively by men.
Due to the fact that the majority of men, or at least a good portion of them, were on the battlefield in Europe, women had to take over the role in certain key areas that were necessary for the victory of the US.
Answer: Nationalism has contributed to the militarization of states.
Explanation:
The beginning of the twentieth century brought a lot of intolerance among European countries. France and Britain were the leading colonial powers, and Germany and Austro-Hungary wanted a part for themselves. In such circumstances, extreme nationalism emerges. Countries are pursuing a rigid, militaristic policy so that the production of weapons and ammunition is growing in almost all European countries. This led to an increase in self-confidence, which is why they went to war so easily. Nationalism thus accelerated and accelerated the production of weapons.
Theodore Roosevelt received the Nobel Peace prize for his work with japan and Russia.
So correct Option is B.