Answer:
Indeed, for historical reasons African Americans have a different public and political opinion than whites. People of African descent have historically suffered economic, social, cultural and political discrimination and relegation since the abolition of slavery after the Civil War, generally obtaining less recognition and benefits from the government than the white majority in the country. For this reason, African Americans have evolved in their thinking towards positions of progressive tint, supporting mostly the Democratic Party and the liberal, inclusive and less conservative ideologies.
The best option will be the C. Railroads made the rapid movement of produce and goods into many markets possible.
Because Railroads basically were the key point to national business and economic growth. Eliminating the needs for long and weary trips, while also founding and fueling other soon-to-be huge business industries, such as iron, coal, copper, machinery, etc., railroads made "rapid movement of produce and goods into many markets possible."
"<span>A. It amounted to an informal declaration of Cold War" would be the best option, but it was not even remotely formal--in that it simply said that the US would come to the aid of any countries in danger of becoming communist. </span>
The most important political leaders during this time were Theodore Roosevelt, Robert M. La Follette, Charles Evans Hughes, and Herbert Hoover. Some democratic leaders included William Jennings Bryan, Woodrow Wilson, and Al Smith. This movement targeted the regulations of huge monopolies and corporations.