I believe it is C. He used extreme violence to scare enemies into surrendering.
The correct option is United State
In 2010, the private sector accounted for an estimated 55.3% of the US economy, the federal government's activities amounted to 24.1% and the activity of state and local governments occupied the remaining 20.6%. Although the US economy is post-industrial, since the services sector contributes 67.8% of GDP, the nation continues to be an industrial power, while in the business field, the leading activity for its income is retail trade. wholesale and retail; by net income is the industry, with the chemical industry being the most important, the United States is the third largest oil producer in the world, as well as the largest importer of this product. It is also the number one producer of electric power and of nuclear energy, as well as liquefied natural gas, sulfur, phosphates and salt. <u><em>While agriculture represents less than 1% of GDP</em></u>
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.