I’m not sure fir this one B
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>
By working together voluntarily, the railroad companies were able to standardize their timetables in 1883. The correct option among all the options that are given in the question is the second option. The creation of time tables made the railway system more efficient and people could know the exact time at which their goods or the people travelling will reach their destination.
Technology affected American lifestyles in two main ways. First, it gave Americans more leisure time. ... The invention of radio and the boom in movies, combined with the growing availability of cars, allowed Americans to pursue a lifestyle that was much more centered around fun than it ever had been before
